diff --git a/boards/models/post/sync.py b/boards/models/post/sync.py
--- a/boards/models/post/sync.py
+++ b/boards/models/post/sync.py
@@ -71,7 +71,9 @@ class SyncManager:
             signatures_tag = et.SubElement(model, TAG_SIGNATURES)
             post_signatures = post.signature.all()
             if post_signatures:
-                signatures = post.signatures
+                signatures = post_signatures
+                # TODO Adding signature to a post is not yet added. For now this
+                # block is useless
             else:
                 # TODO Maybe the signature can be computed only once after
                 # the post is added? Need to add some on_save signal queue
@@ -100,7 +102,7 @@ class SyncManager:
             for tag_model in tag_models:
                 tag_content = tag_model.find(TAG_CONTENT)
 
-                valid = SyncManager.verify_model(tag_content, tag_model)
+                valid = SyncManager._verify_model(tag_content, tag_model)
 
                 if not valid:
                     raise Exception('Invalid model signature')
@@ -128,6 +130,8 @@ class SyncManager:
                     # TODO Check that the replied posts are already present
                     # before adding new ones
 
+                    # TODO Get images
+
                     post = Post.objects.import_post(
                         title=title, text=text, pub_time=pub_time,
                         opening_post=opening_post)
@@ -137,7 +141,7 @@ class SyncManager:
             pass
 
     @staticmethod
-    def verify_model(tag_content, tag_model):
+    def _verify_model(tag_content, tag_model):
         """
         Verifies all signatures for a single model.
         """