I really enjoy overworked PK. There isn't anything better than to walk around the world on your merry way, then just stopping to kill a random person. Uh, anyway, I think it can get a bit troublesome and annoying around building entrances, because that makes any kind of shopping or anything particularly difficult. Doors get clogged up, funnels and staircases become impossible to surpass, and it doesn't help anyone since giant mobs outside of tower settings typically don't generate anyone any PKs, only deaths. That's is a giant waste of time for everyone.