Here's why it's a bad idea to ban links to the "attack sites"... then I wouldn't be able to call y'all's attention to stuff like this:
http://wikipediareview.com/index.php?showtopic=8582
The person (with a questionable grasp on reality) from American Biograph and Mutoscope Company is here accusing Wikipedians of hacking his bank account, in addition to calling it "defamatory" that they don't accept on his say-so that his company is the legitimate successor to a company that went defunct back in the 1920s.