Well the way I see AP is that of :

0- like it being a Pkr the ability of those being Pk'd by you not being able to run to an orb and heal and seeing how for some it feels like forever to obtain 100 AP would choose to pk instead adding more players to Pk

100- when you're just a chill graalian, role-player were an annoying Pkr wouldn't follow you if you had low health in order to obtain your kill, or wanting to go buy a new released item in Onnet town without being killed in the massive Pk going outside the shop