Possible Duplicate:
Is it fine to delete my answer and post new one in case I did something wrong, but due to fast downvoters I had no time to edit it?
I am not doing this. I just realized that this user do like this. I am asking because I downvoted his more than two answers which was wrong or duplicate and he deleted it and added new one (of course better than older.). See this question where that user deleted duplicate and downvoted answer and added new one
My question: Is it okay to delete downvoted (and wrong) answer and add new (and improved) answer? Or should we edit the downvoted answer?