I just spent an hour composing a two page long reply to a question I commented on earlier (yesterday). I searched my archives for code, typed samples, and did some research to write the best quality answer I could. When I finished and pressed "Answer", I got a "Deleted by owner, 12 minutes ago". The question even had at least 1 upvote.
Shouldn't the owner have had to vote to delete the question? At least considering the fact that I had interacted with the OP earlier in the comments?