http://bugs.winehq.org/show_bug.cgi?id=33470
Bug #: 33470 Summary: Don't allow to create wiki pages with external links Product: WineHQ.org Version: unspecified Platform: x86 OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: www-unknown AssignedTo: wine-bugs@winehq.org ReportedBy: dmitry@baikal.ru CC: dimi@lattica.com Classification: Unclassified
Just have a look at http://wiki.winehq.org/RecentChanges, it really starts to take quite a bit of an effort to clean Wine wiki from spam.
Apparently, spammers can't be stopped by keywords listed in the stop list http://wiki.winehq.org/LocalBadContent, and that's another problem.
Disallowing to create wiki pages with external links is considered main and very efficient way to stop wiki spam, there are many resources explaining how to do that for various wiki engines.