diff --git a/lib/groupher_server/accounts/collect_folder.ex b/lib/groupher_server/accounts/collect_folder.ex
index 34efc1b7b..6ae561e53 100644
--- a/lib/groupher_server/accounts/collect_folder.ex
+++ b/lib/groupher_server/accounts/collect_folder.ex
@@ -12,10 +12,6 @@ defmodule GroupherServer.Accounts.CollectFolder do
   @required_fields ~w(user_id title)a
   @optional_fields ~w(index total_count private desc last_updated)a
 
-  @supported_threads [:post, :job, :repo]
-
-  def supported_threads, do: @supported_threads
-
   @type t :: %CollectFolder{}
   schema "collect_folders" do
     belongs_to(:user, User, foreign_key: :user_id)
diff --git a/lib/groupher_server/accounts/delegates/collect_folder.ex b/lib/groupher_server/accounts/delegates/collect_folder.ex
index 55a21ce40..ab87d60dc 100644
--- a/lib/groupher_server/accounts/delegates/collect_folder.ex
+++ b/lib/groupher_server/accounts/delegates/collect_folder.ex
@@ -9,7 +9,7 @@ defmodule GroupherServer.Accounts.Delegate.CollectFolder do
   alias Helper.QueryBuilder
 
   import Helper.ErrorCode
-  import Helper.Utils, only: [done: 1]
+  import Helper.Utils, only: [done: 1, get_config: 2]
 
   import ShortMaps
 
@@ -24,7 +24,7 @@ defmodule GroupherServer.Accounts.Delegate.CollectFolder do
   # @max_article_count_per_collect_folder 300
 
   @default_meta Embeds.CollectFolderMeta.default_meta()
-  @supported_collect_threads [:post, :job]
+  @article_threads get_config(:article, :article_threads)
 
   @doc """
   list a user's not-private collect folders
@@ -75,9 +75,15 @@ defmodule GroupherServer.Accounts.Delegate.CollectFolder do
   end
 
   defp do_paged_collect_folder_articles(folder, filter) do
-    Repo.preload(folder.collects, @supported_collect_threads)
+    article_preload =
+      @article_threads
+      |> Enum.reduce([], fn thread, acc ->
+        acc ++ Keyword.new([{thread, [author: :user]}])
+      end)
+
+    Repo.preload(folder.collects, article_preload)
     |> ORM.embeds_paginater(filter)
-    |> ORM.extract_articles(@supported_collect_threads)
+    |> ORM.extract_articles()
     |> done()
   end
 
diff --git a/lib/groupher_server/accounts/delegates/publish.ex b/lib/groupher_server/accounts/delegates/publish.ex
index bc295c625..cb3236950 100644
--- a/lib/groupher_server/accounts/delegates/publish.ex
+++ b/lib/groupher_server/accounts/delegates/publish.ex
@@ -75,9 +75,8 @@ defmodule GroupherServer.Accounts.Delegate.Publish do
       thread = thread |> to_string |> String.upcase()
       thread_atom = thread |> String.downcase() |> String.to_atom()
 
-      # article_preload = Keyword.new([{thread_atom, :author}])
-      # query = from(comment in ArticleComment, preload: ^article_preload)
-      query = from(comment in ArticleComment, preload: ^thread_atom)
+      article_preload = Keyword.new([{thread_atom, [author: :user]}])
+      query = from(comment in ArticleComment, preload: ^article_preload)
 
       query
       |> join(:inner, [comment], author in assoc(comment, :author))
diff --git a/lib/groupher_server/accounts/delegates/upvoted_articles.ex b/lib/groupher_server/accounts/delegates/upvoted_articles.ex
index 4f8cc65e7..a78ae161f 100644
--- a/lib/groupher_server/accounts/delegates/upvoted_articles.ex
+++ b/lib/groupher_server/accounts/delegates/upvoted_articles.ex
@@ -3,7 +3,7 @@ defmodule GroupherServer.Accounts.Delegate.UpvotedArticles do
   get contents(posts, jobs ...) that user upvotes
   """
   import Ecto.Query, warn: false
-  import Helper.Utils, only: [done: 1]
+  import Helper.Utils, only: [done: 1, get_config: 2]
   import ShortMaps
 
   alias Helper.{ORM, QueryBuilder}
@@ -11,8 +11,7 @@ defmodule GroupherServer.Accounts.Delegate.UpvotedArticles do
   alias GroupherServer.CMS
   alias CMS.{ArticleUpvote}
 
-  # TODO: move to Model
-  @supported_uovoted_threads [:post, :job]
+  @article_threads get_config(:article, :article_threads)
 
   @doc """
   get paged upvoted articles
@@ -31,13 +30,19 @@ defmodule GroupherServer.Accounts.Delegate.UpvotedArticles do
   end
 
   defp load_upvoted_articles(where_query, %{page: page, size: size} = filter) do
-    query = from(a in ArticleUpvote, preload: ^@supported_uovoted_threads)
+    article_preload =
+      @article_threads
+      |> Enum.reduce([], fn thread, acc ->
+        acc ++ Keyword.new([{thread, [author: :user]}])
+      end)
+
+    query = from(a in ArticleUpvote, preload: ^article_preload)
 
     query
     |> where(^where_query)
     |> QueryBuilder.filter_pack(filter)
     |> ORM.paginater(~m(page size)a)
-    |> ORM.extract_articles(@supported_uovoted_threads)
+    |> ORM.extract_articles()
     |> done()
   end
 end
diff --git a/lib/groupher_server/accounts/embeds/collect_folder_meta.ex b/lib/groupher_server/accounts/embeds/collect_folder_meta.ex
index e90416143..83104e3d2 100644
--- a/lib/groupher_server/accounts/embeds/collect_folder_meta.ex
+++ b/lib/groupher_server/accounts/embeds/collect_folder_meta.ex
@@ -10,12 +10,12 @@ defmodule GroupherServer.Accounts.Embeds.CollectFolderMeta.Macros do
     field(:has_repo, :boolean, default: false)
     field(:repo_count, :integer, default: 0)
   """
-  alias GroupherServer.Accounts.CollectFolder
+  import Helper.Utils, only: [get_config: 2]
 
-  @supported_threads CollectFolder.supported_threads()
+  @article_threads get_config(:article, :article_threads)
 
   defmacro threads_fields() do
-    @supported_threads
+    @article_threads
     |> Enum.map(fn thread ->
       quote do
         field(unquote(:"has_#{thread}"), :boolean, default: false)
@@ -27,21 +27,20 @@ end
 
 defmodule GroupherServer.Accounts.Embeds.CollectFolderMeta do
   @moduledoc """
-  general article meta info for article-like content, like @supported_threads
+  general article meta info for articles
   """
   use Ecto.Schema
   import Ecto.Changeset
   import GroupherServer.Accounts.Embeds.CollectFolderMeta.Macros
+  import Helper.Utils, only: [get_config: 2]
 
-  alias GroupherServer.Accounts.CollectFolder
+  @article_threads get_config(:article, :article_threads)
 
-  @supported_threads CollectFolder.supported_threads()
-
-  @optional_fields Enum.map(@supported_threads, &:"#{&1}_count") ++
-                     Enum.map(@supported_threads, &:"has_#{&1}")
+  @optional_fields Enum.map(@article_threads, &:"#{&1}_count") ++
+                     Enum.map(@article_threads, &:"has_#{&1}")
 
   def default_meta() do
-    @supported_threads
+    @article_threads
     |> Enum.reduce([], fn thread, acc -> acc ++ ["#{thread}_count": 0, "has_#{thread}": false] end)
     |> Enum.into(%{})
   end
diff --git a/lib/groupher_server_web/schema/Helper/fields.ex b/lib/groupher_server_web/schema/Helper/fields.ex
index 7acab3621..169088ddb 100644
--- a/lib/groupher_server_web/schema/Helper/fields.ex
+++ b/lib/groupher_server_web/schema/Helper/fields.ex
@@ -9,7 +9,6 @@ defmodule GroupherServerWeb.Schema.Helper.Fields do
   @page_size get_config(:general, :page_size)
   @supported_emotions get_config(:article, :supported_emotions)
   @supported_comment_emotions get_config(:article, :comment_supported_emotions)
-  @supported_collect_folder_threads Accounts.CollectFolder.supported_threads()
 
   @article_threads get_config(:article, :article_threads)
 
@@ -242,7 +241,7 @@ defmodule GroupherServerWeb.Schema.Helper.Fields do
   general collect folder meta info
   """
   defmacro collect_folder_meta_fields() do
-    @supported_collect_folder_threads
+    @article_threads
     |> Enum.map(fn thread ->
       quote do
         field(unquote(:"has_#{thread}"), :boolean)
diff --git a/lib/groupher_server_web/schema/cms/cms_types.ex b/lib/groupher_server_web/schema/cms/cms_types.ex
index ffe3b02bf..80c01623c 100644
--- a/lib/groupher_server_web/schema/cms/cms_types.ex
+++ b/lib/groupher_server_web/schema/cms/cms_types.ex
@@ -27,7 +27,7 @@ defmodule GroupherServerWeb.Schema.CMS.Types do
     field(:id, :id)
     # field(:body_html, :string)
     field(:title, :string)
-    field(:author, :user, resolve: dataloader(CMS, :author))
+    field(:author, :common_user)
   end
 
   object :common_article_comment do
diff --git a/lib/helper/orm.ex b/lib/helper/orm.ex
index e16f627af..d72e59e15 100644
--- a/lib/helper/orm.ex
+++ b/lib/helper/orm.ex
@@ -295,6 +295,9 @@ defmodule Helper.ORM do
     |> Repo.update()
   end
 
+  @doc """
+  extract common article info and assign it to 'article' field
+  """
   def extract_and_assign_article(%{entries: entries} = paged_articles) do
     entries =
       Enum.map(entries, fn item ->
@@ -307,24 +310,27 @@ defmodule Helper.ORM do
 
   @doc "extract common articles info"
   @spec extract_articles(T.paged_data(), [Atom.t()]) :: T.paged_article_common()
-  def extract_articles(%{entries: entries} = paged_articles, supported_threads) do
+  def extract_articles(%{entries: entries} = paged_articles, threads \\ @article_threads) do
     paged_articles
-    |> Map.put(:entries, Enum.map(entries, &extract_article_info(&1, supported_threads)))
+    |> Map.put(:entries, Enum.map(entries, &extract_article_info(&1, threads)))
   end
 
-  defp extract_article_info(reaction, supported_threads) do
-    thread = Enum.find(supported_threads, &(not is_nil(Map.get(reaction, &1))))
+  defp extract_article_info(reaction, threads) do
+    thread = Enum.find(threads, &(not is_nil(Map.get(reaction, &1))))
     article = Map.get(reaction, thread)
 
     export_article_info(thread, article)
   end
 
   defp export_article_info(thread, article) do
+    author = article.author.user
+
     %{
       thread: thread,
       id: article.id,
       title: article.title,
-      upvotes_count: Map.get(article, :upvotes_count)
+      upvotes_count: Map.get(article, :upvotes_count),
+      author: author
     }
   end
 end
diff --git a/test/groupher_server/accounts/published/published_jobs_test.exs b/test/groupher_server/accounts/published/published_jobs_test.exs
index 39be4b13b..1d1a0c797 100644
--- a/test/groupher_server/accounts/published/published_jobs_test.exs
+++ b/test/groupher_server/accounts/published/published_jobs_test.exs
@@ -72,7 +72,6 @@ defmodule GroupherServer.Test.Accounts.Published.Job do
   end
 
   describe "[publised job comments]" do
-    @tag :wip2
     test "can get published article comments", ~m(job user)a do
       total_count = 10
 
diff --git a/test/groupher_server/accounts/published/published_posts_test.exs b/test/groupher_server/accounts/published/published_posts_test.exs
index 38697221e..ed54e432a 100644
--- a/test/groupher_server/accounts/published/published_posts_test.exs
+++ b/test/groupher_server/accounts/published/published_posts_test.exs
@@ -72,7 +72,6 @@ defmodule GroupherServer.Test.Accounts.Published.Post do
   end
 
   describe "[publised post comments]" do
-    @tag :wip2
     test "can get published article comments", ~m(post user)a do
       total_count = 10
 
diff --git a/test/groupher_server/accounts/published/published_repos_test.exs b/test/groupher_server/accounts/published/published_repos_test.exs
index 8032e719a..102bad639 100644
--- a/test/groupher_server/accounts/published/published_repos_test.exs
+++ b/test/groupher_server/accounts/published/published_repos_test.exs
@@ -72,7 +72,6 @@ defmodule GroupherServer.Test.Accounts.Published.Repo do
   end
 
   describe "[publised repo comments]" do
-    @tag :wip2
     test "can get published article comments", ~m(repo user)a do
       total_count = 10
 
diff --git a/test/groupher_server/accounts/reacted_articles_test.exs b/test/groupher_server/accounts/reacted_articles_test.exs
index 3d90cc29d..43237e749 100644
--- a/test/groupher_server/accounts/reacted_articles_test.exs
+++ b/test/groupher_server/accounts/reacted_articles_test.exs
@@ -14,6 +14,7 @@ defmodule GroupherServer.Test.Accounts.ReactedContents do
   end
 
   describe "[user upvoted articles]" do
+    @tag :wip2
     test "user can get paged upvoted common articles", ~m(user post job)a do
       {:ok, _} = CMS.upvote_article(:post, post.id, user)
       {:ok, _} = CMS.upvote_article(:job, job.id, user)
@@ -28,8 +29,8 @@ defmodule GroupherServer.Test.Accounts.ReactedContents do
       assert job.id == article_job |> Map.get(:id)
       assert post.id == article_post |> Map.get(:id)
 
-      assert [:id, :thread, :title, :upvotes_count] == article_post |> Map.keys()
-      assert [:id, :thread, :title, :upvotes_count] == article_job |> Map.keys()
+      assert [:author, :id, :thread, :title, :upvotes_count] == article_post |> Map.keys()
+      assert [:author, :id, :thread, :title, :upvotes_count] == article_job |> Map.keys()
     end
 
     test "user can get paged upvoted posts by thread filter", ~m(user post job)a do
diff --git a/test/groupher_server_web/query/accounts/published/published_jobs_test.exs b/test/groupher_server_web/query/accounts/published/published_jobs_test.exs
index 7b01e0a75..7da20bf96 100644
--- a/test/groupher_server_web/query/accounts/published/published_jobs_test.exs
+++ b/test/groupher_server_web/query/accounts/published/published_jobs_test.exs
@@ -34,7 +34,7 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Jobs do
       }
     }
     """
-    @tag :wip2
+
     test "can get published jobs", ~m(guest_conn community user)a do
       job_attrs = mock_attrs(:job, %{community_id: community.id})
 
@@ -62,6 +62,10 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Jobs do
           article {
             id
             title
+            author {
+              nickname
+              login
+            }
           }
         }
         totalPages
@@ -71,7 +75,7 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Jobs do
       }
     }
     """
-    @tag :wip2
+
     test "user can get paged published comments on job", ~m(guest_conn user job)a do
       pub_comments =
         Enum.reduce(1..@publish_count, [], fn _, acc ->
@@ -82,14 +86,18 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Jobs do
       random_comment_id = pub_comments |> Enum.random() |> Map.get(:id) |> to_string
 
       variables = %{login: user.login, thread: "JOB", filter: %{page: 1, size: 20}}
+
       results = guest_conn |> query_result(@query, variables, "pagedPublishedArticleComments")
 
+      entries = results["entries"]
       assert results |> is_valid_pagination?
       assert results["totalCount"] == @publish_count
 
-      assert results["entries"] |> Enum.all?(&(&1["article"]["id"] == to_string(job.id)))
-      assert results["entries"] |> Enum.all?(&(&1["author"]["id"] == to_string(user.id)))
-      assert results["entries"] |> Enum.any?(&(&1["id"] == random_comment_id))
+      assert entries |> Enum.all?(&(not is_nil(&1["article"]["author"])))
+
+      assert entries |> Enum.all?(&(&1["article"]["id"] == to_string(job.id)))
+      assert entries |> Enum.all?(&(&1["author"]["id"] == to_string(user.id)))
+      assert entries |> Enum.any?(&(&1["id"] == random_comment_id))
     end
   end
 end
diff --git a/test/groupher_server_web/query/accounts/published/published_posts_test.exs b/test/groupher_server_web/query/accounts/published/published_posts_test.exs
index 64ffb5a17..7bf490ad5 100644
--- a/test/groupher_server_web/query/accounts/published/published_posts_test.exs
+++ b/test/groupher_server_web/query/accounts/published/published_posts_test.exs
@@ -34,7 +34,7 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Posts do
       }
     }
     """
-    @tag :wip2
+
     test "can get published posts", ~m(guest_conn community user)a do
       post_attrs = mock_attrs(:post, %{community_id: community.id})
 
@@ -62,6 +62,10 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Posts do
           article {
             id
             title
+            author {
+              nickname
+              login
+            }
           }
         }
         totalPages
@@ -71,7 +75,7 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Posts do
       }
     }
     """
-    @tag :wip2
+
     test "user can get paged published comments on post", ~m(guest_conn user post)a do
       pub_comments =
         Enum.reduce(1..@publish_count, [], fn _, acc ->
@@ -82,14 +86,18 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Posts do
       random_comment_id = pub_comments |> Enum.random() |> Map.get(:id) |> to_string
 
       variables = %{login: user.login, thread: "POST", filter: %{page: 1, size: 20}}
+
       results = guest_conn |> query_result(@query, variables, "pagedPublishedArticleComments")
 
+      entries = results["entries"]
       assert results |> is_valid_pagination?
       assert results["totalCount"] == @publish_count
 
-      assert results["entries"] |> Enum.all?(&(&1["article"]["id"] == to_string(post.id)))
-      assert results["entries"] |> Enum.all?(&(&1["author"]["id"] == to_string(user.id)))
-      assert results["entries"] |> Enum.any?(&(&1["id"] == random_comment_id))
+      assert entries |> Enum.all?(&(not is_nil(&1["article"]["author"])))
+
+      assert entries |> Enum.all?(&(&1["article"]["id"] == to_string(post.id)))
+      assert entries |> Enum.all?(&(&1["author"]["id"] == to_string(user.id)))
+      assert entries |> Enum.any?(&(&1["id"] == random_comment_id))
     end
   end
 end
diff --git a/test/groupher_server_web/query/accounts/published/published_repos_test.exs b/test/groupher_server_web/query/accounts/published/published_repos_test.exs
index 39265cc8c..19227f564 100644
--- a/test/groupher_server_web/query/accounts/published/published_repos_test.exs
+++ b/test/groupher_server_web/query/accounts/published/published_repos_test.exs
@@ -34,7 +34,7 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Repos do
       }
     }
     """
-    @tag :wip2
+
     test "can get published repos", ~m(guest_conn community user)a do
       repo_attrs = mock_attrs(:repo, %{community_id: community.id})
 
@@ -62,6 +62,10 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Repos do
           article {
             id
             title
+            author {
+              nickname
+              login
+            }
           }
         }
         totalPages
@@ -71,7 +75,7 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Repos do
       }
     }
     """
-    @tag :wip2
+
     test "user can get paged published comments on repo", ~m(guest_conn user repo)a do
       pub_comments =
         Enum.reduce(1..@publish_count, [], fn _, acc ->
@@ -82,14 +86,18 @@ defmodule GroupherServer.Test.Query.Accounts.Published.Repos do
       random_comment_id = pub_comments |> Enum.random() |> Map.get(:id) |> to_string
 
       variables = %{login: user.login, thread: "REPO", filter: %{page: 1, size: 20}}
+
       results = guest_conn |> query_result(@query, variables, "pagedPublishedArticleComments")
 
+      entries = results["entries"]
       assert results |> is_valid_pagination?
       assert results["totalCount"] == @publish_count
 
-      assert results["entries"] |> Enum.all?(&(&1["article"]["id"] == to_string(repo.id)))
-      assert results["entries"] |> Enum.all?(&(&1["author"]["id"] == to_string(user.id)))
-      assert results["entries"] |> Enum.any?(&(&1["id"] == random_comment_id))
+      assert entries |> Enum.all?(&(not is_nil(&1["article"]["author"])))
+
+      assert entries |> Enum.all?(&(&1["article"]["id"] == to_string(repo.id)))
+      assert entries |> Enum.all?(&(&1["author"]["id"] == to_string(user.id)))
+      assert entries |> Enum.any?(&(&1["id"] == random_comment_id))
     end
   end
 end