Report, roll film for a bit, then squelch them. There are more than a few guys with new IDs who act like bitter, burned out vets, constantly whining about collisions, HOs, hacking, and teamwork. Use the hell out of the report function, and they'll lose comm privs immediately. If they persist, send the film to HTC.
As much as I enjoy these types of threads, I'm pretty sure HTC doesn't.