[AlexH]

AP can be useful on servers.
Not with the non-hurting part though.
Could be implemented into quests.
Like the King of BlahLand isn't going to give a mission to someone who constantly kills for the fun of it if the mission is to go and get information from somewhere without being seen.
He would rather someone who didn't kill everything that's a threat or in their sight.
And the BlahLand Mafia are more likely to give a job to someone good at killing so the person with low AP is going to get this mission.