diff --git a/doc/Forums.md b/doc/Forums.md
index 2eac81a722..54e8e38791 100644
--- a/doc/Forums.md
+++ b/doc/Forums.md
@@ -53,9 +53,12 @@ Posting to Community forums
 
 If you are a member of a community forum, you may post to the forum by including an @-tag in the post mentioning the forum.
 For example @bicycle would send my post to all members of the group "bicycle" in addition to the normal recipients.
-If your post is private you must also explicitly include the group in the post permissions (to allow the forum "contact" to see the post) **and** mention it in a tag (which redistributes the post to the forum members).  
+If you mention a forum (you are a member of) in a new posting, the posting will be distributed to all members of the forum, regardless of your privacy settings for the posting.
+Also, if the forum is a public forum, your posting will be public for the all internet users.
+If your post is private you must also explicitly include the group in the post permissions (to allow the forum "contact" to see the post) **and** mention it in a tag (which redistributes the post to the forum members).
+Posting privately to a public forum, will result in your posting being displayed on the forum wall, but not on yours.
 
-You may also post to a community forum by posting a "wall-to-wall" post using secure cross-site authentication.   
+You may also post to a community forum by posting a "wall-to-wall" post using secure cross-site authentication.
 
 Comments which are relayed to community forums will be relayed back to the original post creator.
 Mentioning the forum with an @-tag in a comment does not relay the message, as distribution is controlled entirely by the original post creator.