Spam chongqing

Spammers are beginning to discover methods to hide their spam on MediaWiki and some other web software using CSS. The spam is easy to catch if you watch the RecentChanges page often enough, but Halz has already found examples where hidden spam has been overlooked. The spam shows up clearly in the diff and can be seen in the edit page but otherwise is invisible to wiki users.

More information on this problem on our wiki.