Something even cooler, Lineage 2 (inception times similar to wow, say 2004) had a Karma system for killing other players. Pretty much it was possible to kill an

Something even cooler, Lineage 2 (inception times similar to wow, say 2004) had a Karma system for killing other players. Pretty much it was possible to kill anyone, without their consent outside towns. Karma required cleaning -- killing normal mobs (instead players), having karma and having unrepented sins (killed 5+ players who didn't fight back), dying - including being killed by other players resulted in gear drop. Overall it was possible to hunt such players. There was one player who managed to kill so many new players that his 32bit karma turned negative via integer overflow and he was free from all the filthy red status.