diff --git a/API.md b/API.md
index 3e139da3..1257c14c 100644
--- a/API.md
+++ b/API.md
@@ -64,6 +64,7 @@
 3. [Resources](#resources)
 
    - [User](#user)
+   - [Micro user](#micro-user)
    - [Tag category](#tag-category)
    - [Tag](#tag)
    - [Post](#post)
@@ -1427,6 +1428,11 @@ A single user.
 
 - `<avatarUrl>`: the URL to the avatar.
 
+## Micro user
+**Description**
+
+A [user resource](#user) stripped down to `name` and `avatarUrl` fields.
+
 ## Tag category
 **Description**
 
@@ -1584,7 +1590,7 @@ One file together with its metadata posted to the site.
   to the user by the web client.
 - `<notes>`: a list of post annotations, serialized as list of [note
   resources](#note).
-- `<user>`: who created the post, serialized as [user resource](#user).
+- `<user>`: who created the post, serialized as [micro user resource](#micro-user).
 - `<score>`: the collective score (+1/-1 rating) of the given post.
 - `<own-score>`: the score (+1/-1 rating) of the given post by the
   authenticated user.
@@ -1595,7 +1601,7 @@ One file together with its metadata posted to the site.
 - `<feature-count>`: how many times has the post been featured.
 - `<last-feature-time>`: the last time the post was featured, formatted as per
   RFC 3339.
-- `<favorited-by>`: list of users, serialized as [user resources](#user).
+- `<favorited-by>`: list of users, serialized as [micro user resources](#micro-user).
 - `<has-custom-thumbnail>`: whether the post uses custom thumbnail.
 - `<mime-type>`: subsidiary to `<type>`, used to tell exact content format;
   useful for `<video>` tags for instance.
@@ -1648,7 +1654,7 @@ A comment under a post.
 - `<id>`: the comment identifier.
 - `<post-id>`: an id of the post the comment is for.
 - `<text>`: the comment content. The client should render is as Markdown.
-- `<author>`: a user resource the comment is created by.
+- `<author>`: a [micro user resource](#micro-user) the comment is created by.
 - `<creation-time>`: time the comment was created, formatted as per RFC 3339.
 - `<last-edit-time>`: time the comment was edited, formatted as per RFC 3339.
 - `<score>`: the collective score (+1/-1 rating) of the given comment.
diff --git a/server/szurubooru/func/comments.py b/server/szurubooru/func/comments.py
index f6e18e97..88d65d6c 100644
--- a/server/szurubooru/func/comments.py
+++ b/server/szurubooru/func/comments.py
@@ -10,7 +10,7 @@ def serialize_comment(comment, authenticated_user, options=None):
         comment,
         {
             'id': lambda: comment.comment_id,
-            'user': lambda: users.serialize_user(comment.user, authenticated_user),
+            'user': lambda: users.serialize_micro_user(comment.user),
             'postId': lambda: comment.post.post_id,
             'text': lambda: comment.text,
             'creationTime': lambda: comment.creation_time,
diff --git a/server/szurubooru/func/posts.py b/server/szurubooru/func/posts.py
index 498bad37..47653e48 100644
--- a/server/szurubooru/func/posts.py
+++ b/server/szurubooru/func/posts.py
@@ -81,7 +81,7 @@ def serialize_post(post, authenticated_user, options=None):
             'flags': lambda: post.flags,
             'tags': lambda: [tag.names[0].name for tag in post.tags],
             'relations': lambda: [rel.post_id for rel in post.relations],
-            'user': lambda: users.serialize_user(post.user, authenticated_user),
+            'user': lambda: users.serialize_micro_user(post.user),
             'score': lambda: post.score,
             'ownScore': lambda: scores.get_score(post, authenticated_user),
             'tagCount': lambda: post.tag_count,
@@ -91,7 +91,7 @@ def serialize_post(post, authenticated_user, options=None):
             'featureCount': lambda: post.feature_count,
             'lastFeatureTime': lambda: post.last_feature_time,
             'favoritedBy': lambda: [
-                users.serialize_user(rel.user, authenticated_user) \
+                users.serialize_micro_user(rel.user) \
                     for rel in post.favorited_by],
             'hasCustomThumbnail':
                 lambda: files.has(get_post_thumbnail_backup_path(post)),
diff --git a/server/szurubooru/func/users.py b/server/szurubooru/func/users.py
index d2f46c52..d5e7b11e 100644
--- a/server/szurubooru/func/users.py
+++ b/server/szurubooru/func/users.py
@@ -42,6 +42,12 @@ def serialize_user(user, authenticated_user, options=None, force_show_email=Fals
         },
         options)
 
+def serialize_micro_user(user):
+    return serialize_user(
+        user,
+        authenticated_user=None,
+        options=['name', 'avatarUrl'])
+
 def get_user_count():
     return db.session.query(db.User).count()
 
diff --git a/server/szurubooru/tests/func/test_posts.py b/server/szurubooru/tests/func/test_posts.py
index fa8abc49..8386500f 100644
--- a/server/szurubooru/tests/func/test_posts.py
+++ b/server/szurubooru/tests/func/test_posts.py
@@ -68,10 +68,10 @@ def test_serialize_post(
         post_factory, user_factory, comment_factory, tag_factory, config_injector):
     config_injector({'data_url': 'http://example.com/'})
     with unittest.mock.patch('szurubooru.func.comments.serialize_comment'), \
-            unittest.mock.patch('szurubooru.func.users.serialize_user'), \
+            unittest.mock.patch('szurubooru.func.users.serialize_micro_user'), \
             unittest.mock.patch('szurubooru.func.posts.files.has', return_value=True), \
             unittest.mock.patch('szurubooru.func.snapshots.get_serialized_history'):
-        users.serialize_user.side_effect = lambda user, auth_user: user.name
+        users.serialize_micro_user.side_effect = lambda user: user.name
         comments.serialize_comment.side_effect \
             = lambda comment, auth_user: comment.user.name
         snapshots.get_serialized_history.return_value = 'snapshot history'