Wiki defacement

We have a "l33t hax0r" who is defacing the RPM Fusion wiki pages, claiming that RPM Fusion is insecure because it has an open wiki. I would like to suggest that we lock down the wiki so only RPM Fusion devs can change it. Or possibly wait for an admin to approve any changes that a new user makes. As much as I like the idea of an open wiki, when someone uses its openness to pee all over it, it's probably time to lock it down. See https://bugzilla.rpmfusion.org/show_bug.cgi?id=3313. Meanwhile, I'm off to revert some more pee'd on pages. Jonathan