It seems that there are a few (if not more) people getting banned from the forum. The idea of the posting filter would be that if anything is typed in a new post that breaks any rules of the forum, the request for submitting would be cancelled, then go back to the make new post page with a message(s) informing the user what should be changed, deleted, etc... Don't know if its possible, but it seems like it would help a bit.
Also, just a question. What is an avatar?