There's one thing you can do with death threads: go to the police. It's good for them to have stuff on record. Even if they don't and/or can't do anything about it before you're dead (God forbid).
On the other hand, those people that hide behind a monitor and thing they're cool by picking up on people, they only care about titles. If you strip any chance for them to be called "cool" because of their actions, they'll... probably not stop, but instead go onto highschool shootings and then kill themselves, thinking that they're fighting for their precious _title_. Not that it means anything to the rest of the world, but it means a lot to them, and they think that taking their title away is like taking their lives, jobs, home, etc. away from them.
Only if stupidity hurt... but it doesn't. Actually, those are the people that suffer the least.