If I were a developer, I think I'd see PoM as a wide open zone with which to populate some strange ideas/possibilities/mob bosses.
I could see a boss, for example, shrinking everyone so small the slip through cracks in the floor and also growing them so large they are ducked and can no longer cast spells etc etc. Or horrors of horrors everyone could have their armor stripped off and replaced with Gnome Skin armor. ... Should be a great place to try all those annoying ideas in the background of your nefarious developer mind...