I don't see anything wrong from those players, they only follow the rules of the game or the game mechanic or governments constitutional law (lol). They didn't even use hack or glitch while doing that.
First of all the majority of most mmorpg, like this game usually urge or strongly persuade players even if that person is a democrats or republican to pk or preform murder against the opposite faction by using a rewarding system from quest & ranks, including the quest story line.