I'm so rarely presented with a case of someone in an MMO or RP setting or what have you, who seems genuinely "in trouble" IRL.
Either he's desperate for attention and just plainly bad at what he's doing, or he has trouble keeping his emotions in check and has real psychological issues.
Either way, what concern is it of anyone but him, his family, and hopefully his therapist? We all deal with life. Bring it into the public sphere, throw it towards strangers in the hopes they'll fix it for you, you're asking to get your teeth kicked in by the uncaring internet hate machine.
I'm gonna suggest as a fellow observer that you stay out of it for your own sake. If you want to try to help him, best of luck.