There are two wonderful features that solves this problem that has existed since the Internet was born. The first feature is called the "block" button. This prevents users from sending private messages to you, while muting their posts to you on forums. If this doesn't stop them as they will most likely create dupes just to harass you, then you can use the second feature that's called the "Report" button. This will send a complaint to a moderator letting them know this poster is being a problem. Of course, this only applies to moderators that care enough to do their jobs, and if your complaint is valid. If none of those work, well, you can always log off. OR, assemble some forces and troll the user hard. This is why I don't see cyberbullying as a serious problem. They're all behind the monitor. The f*** can they possibly do to you? SWAT you? Then if you suspect is the same asshole harassing you, tell the mods about it. If they refuse to do their jobs, well you can always an "anonymous" note to a certain group. [spoiler]If you get what I mean[/spoiler] Whatever. Either way, there's no reason you should go kill yourself over this. Just ignore the f***ers.