Not on my end, of course--I think this one would require code. But--I am having a problem with people who reply to their own comments, sometimes within minutes of the first comment, sometimes with a whole string of comments. Always by unregistered contributors. Sometimes, they are even set up, conversation-wise, to try and make it seem like someone else is seconding their posted opinion, though a quick check shows only one IP involved. Is it possible to have some kind of built-in restriction against directly replying to your own comment? Maybe at least for unregistered contributors?