The Freedesktop.org and X.org wikis have long been plagued with lots and lots of spam. Alan Coopersmith has been doing a heroic effort keeping it at bay, but it's been a manual effort and not really something to rely on, long-term. I've now created an EditGroup on both the wikis and any pages which do not otherwise have ACLs associated with them are now only editable by members of the EditGroup. The group can manage itself, so either ask an existing member or ask on #freedesktop on IRC and we'll add you.
I'd like to apologise for needing to take this step, but the spam problem is bad enough that it's unfortunately needed.– tfheen