Everyone can report anyone. I don't see the need of a 'police' force in PL. And when you're saying that every town need one, how will that work? Should there be a player in each instance of a town? FH alone can easily have 20+ instances already. And what about the empty towns? Should a player just stand there all day hoping someone pops in? Another point, flaming is often done in PM's, no way a regular player can catch that.

Just my thoughts