I'm all for it, but I don't have the tech savvy to know how much that would help. Complain to the perp's ISP?
He's violated so many things it's hard to know what to go after first.
He's obviously violated his provider's terms of service, he also is guilty of stalking and harassment.
We would probably have to, individually, get whatever info we could and file complaints locally with the courts.
We would need his IP addies.