Board Thread:Support Requests - Community Management/@comment-155613-20130410234527/@comment-188432-20130412000846

Is there any pattern to the content of what the person publishes? If so, you may be able to heavily discourage him with AbuseFilter. You would be able to create an exclusion that says something like:
 * If the edit comes from a user whose name begins with 97, and they use one of these words, then prevent the edit, and block that particular IP.

If it happened enough times in succession, the person would probably get discouraged and stop.