Username or EmailPassword
If that happens, just contact us and we'll delete it. I'm afraid such an option would get abused.
I would like to request that, too. Perhaps these features that you worry about being abused could be given to users after they have a certain level of "trust."
I'm open to this. It could be an option that works with a certain trust level, but only as long as the edit button is available.
If there are replies, it will blank out your comment, but if there are none, it will truly delete it.