Speaking of which, can you create an office account for me? I've yet to test that baby out. As opposed to the many other babies which I've tested to exhaustion. Yes, I went there.
Edit: I think we could just lock down the whole thing, only allowing user edits but really what needs to be done first is that the entire database needs scrubbed. It's full of junk. Once you get rid of that I think there's no problem just restarting it with MediaWiki and tighter permissions. The appeal of having a wiki is that people can edit dynamic pages, whereas the appeal of a CMS is to streamline the process of putting the content up in the first place.
That's a hell of a task though, just view the recent changes page to see exactly how frequently it's being spammed. A clean start would be much more beneficial, perhaps creating an archive page from there and storing all the good nonsensical articles of old in there. I've locked the database for now.