This question is an exact duplicate of:
I answered a question, but after two days the question was deleted, so its answers deleted after also without any notification to me.
I found my deleted answer in
Deleted Recent Answers list, then I found the deleted its question.
I expected it notify to me!
Also, what's the reason for deleting a question by the owner?
I have spent a time and effort into answering that!
This is the deleted post that I'm complaining about it.