I think incognito misunderstood me to mean the PK range extends downwards, when what I actually meant was that the PK range would shrink. Either way it does make it easier to hoard when you can't be attacked by higher level people. While I don't see why I'd then hoard, that's probably just because I don't usually do.

Another abuse obvious in retrospect, healing or spell casting for others while they PK and you watch. Could that be adjusted for somehow?