I posted an answer on a stackexchange site, and it was deleted by a moderator. Admittedly, the analogy I used was a bit of a stretch and apparently people didn't understand it, so the deletion is understandable. I would be happy to edit the answer and make it clearer, but I don't want to spend time doing so if there's no way to undelete it. Apparently I'm completely unable to undelete the answer, and I'm also unable to contact the moderator to discuss the situation with them. I can't even add comments because "This question is protected to prevent "thanks!", "me too!", or spam answers by new users."
Is it normal that an answer is deleted, the author is unable to do anything about it at all?