Forum:Blacklisting?

At the Justin Bieber answers site, we need urgent help. We need to blacklist words related to personal information (and other stuff). How can be do this? MediaWiki:BadWords is not helping us. — I-20 the highway  19:59, September 1, 2010 (UTC)
 * Well, the spam blacklist only works in links AFAIK, you may need to ask Special:Contact. -- 20:13, September 1, 2010 (UTC)