Over on Stack Overflow I asked a question that sat unanswered for over a month. I then noticed that one of the comments was actually an authoritative answer, and so added it as an answer and accepted it.
A couple upvotes later and I got the Revival badge. Not that I don't appreciate more bling, but this seems wrong to me. However, unlikely, I worry that this will encourage users to 'bump' their old unanswered questions with an answer and maybe get a bronze badge out of it.
Probably a minor deal, but: should the asker of a question be allowed to get a Revival for their own answer? I think perhaps not.