Forum:How can unruly users be blocked?

I work on South Park Wikia, there's a user called Flatts who is blanking pages and replacing them with how he reckons he's going to kick someone's butt, he also adds it to userpages. I can't find any admin on the site and the user is bothering a lot of people. Mr. Garrison 15:33, 19 May 2007 (UTC)
 * Thanks a lot for pointing to this problem. This accounts and some sockpuppets are blocked now. --rieke 20:14, 19 May 2007 (UTC)
 * Thanks for the assistance. Mr. Garrison 21:04, 19 May 2007 (UTC)