Dominic, they left. The most we could possibly do to them, if there's enough evidence left to determine anything, would be to lock their inactive accounts, "just in case" they ever happen to return and unpause.
We get it. You think everyone in Aurvandil is a dirty cheater, and we should hunt them down in the real world and kill their puppies while they watch, before submerging them in acid baths.
You really need to just forget about it all. This level of sustained hatred is unhealthy.