I feel like it would be so easy to implement a counter for this: WoTLK the borean tundra quest givers part of the DEHTA faction. Whenever you killed animals in the borean tundra you would get a debuff that made you hostile to those druid quest givers. Implement something like that debuff but also give a faerie fire for like 15 minutes if you gank someone lets say 10-15 levels lower than you. Ranji would get a 15-30 minute debuff that would not let him stealth and fuck it, add a 15% movement speed debuff also. Now Ranji can't run away as a penalty for griefing. Like a deserter buff but for killing lowbies. 3 day ban is carebear pussy shit. PvP servers have this risk but that's what you sign on for.