With reference to this question when the OP answered a question, hit submit only to be told that the question had been deleted by the questioner while he was writing his answer.
Clearly there are situations where a question has gained enough answers, votes or maybe even been there for long enough that the OP cannot delete it. What are these criteria? Can they modified for Chess? (I'm guessing the answer is "No"). Should they be modified to make them stricter?