User blog comment:Dopp/Technical Update: October 18, 2011/@comment-3235402-20111018225540/@comment-1656630-20111019005242

Hmm... actually, i just asked around, and I don't think we're seeing this other places. You may need to review your custom JS. (and the titles just appeared for me the second time i checked. may be intermittent, possibly affected by clicking "Save" on that page?). Still, Special:Contact if that doesn't give you enough to track it down.