If a topic requires post approval or moderation, posts only appear to users with permission to approve them. You must manually approve these posts to make them visible to all users. Users with permission to approve posts in a topic can create approved posts automatically.
You can enable and disable post approval from the Properties tab when creating or editing a forum or topic. Once you enable post approval, a 
Moderated notification appears beside the forum or topic name.
If a post is not appropriate for the topic and you do not want to approve it, you can do any of the following:
- Leave the post unapproved.
- Edit the post before approving it.
- Delete the post.