Here's the thing, though. If, and ONLY if Alienator is solely responsible for this whole situation, he's obviously doing it to be a giant asshole and a troll. In that case, he WANTS people to flame him, because that's what trolls do.
The ONLY people who could deal with Alienator over the internet in such a way that he would not enjoy it is /b/ at 4chan. They could ruin/severely disrupt his life, and though he might be enough of a masochistic troll that he'd enjoy the attention for a while, eventually he'd probably be disrupted enough to regret what he did.
The thing is, 4chan lives off of trolling and internet drama. So even if we appealed to 4chan to raid Alienator, they might just regard him as a conquering hero. Instead of getting a raid, he might get a PArade from 4chan.
This is all assuming he's actually responsible for all this.