I saw the question previously asked in:
Who owns my MathOverflow posts?
Unfortunately, I was not able to get a clear answer by reading the responses to that question, as other people had commented that the answer provided was incorrect and there was doubt about what the correct answer was. Can anyone provide an updated and clear answer?
Actually, I have a more specific question in this regard. If the author of a question on MathOverflow owns that question, then the author should be able to edit his/her own question in any way that he/she wants, including removing it completely and replacing it (literally) with the word Hello, for example. But I know that MathOverflow does not allow this kind of editing. So once a question has been posted and answered, the author cannot be the owner (at least this is the implication of the example of the extreme editing that I mentioned). Is MathOverflow the owner then? And what does this ownership mean? If the author is the owner, then why can MathOverflow restrict the amount of editing?