When making a report to them, Gm contacts you that's the good part of it, bad part is that they "advise you to blacklist this person to prevent further contact from them." Well blacklisting them isn't enough! They could have other characters and they still would contact you as a different character, speaking from experience here. Even if you remove them from your friend list and blacklist them, it doesn't remove you from theirs. (And I just made a suggestion on improving the blacklist functions)