Have you ever told anyone besides people on the forum?
It's called Cyber-bullying dude, happens all the time.
I understand your pain, I'm not flaming or anything, but I was cyber-bullied a while ago, but then I figured out that he lived in my neighborhood, called the cobs, and his mom got talked to by them, then he left me alone from that time, and today he still doesn't bother me. I think he moved though... Not sure.
But still dude, if it gets worse, like MAJOR threats (death threats, rape threats, etc.), then tell someone, because the forum guys (us) cant really do anything but give you advice. Sorry York.
Wish I could help you buddy, but I'm afraid I cant...
Good luck on dealing with FrostBite!