A potential innovative solution to the various complaints around PK experience loss unpleasantness, etc.
Make the reward for PK (i.e. killing others) give more xp than dying loses xp, scaled inversely to the number of kills on your character (either by some factor/percentage or in tiers) and scaled proportionally to the might, auction escrow, kill count, and kdr of those killed (in some formula). Let those who are not the top dogs gain more from killing so that killing someone like Jhui even once in a day outweighs dying 5 times.
At least something like that in theory, if not the particulars.