Good question w lots of thoughtful feedback!
With the proviso that this is strictly about Syndesia, and implemented once the PvP haven is online:
I like the idea of losing KP once a PK's murder rate hits a certain level. It's like, 'yeah, you got my loot, but now you're STUPIDER than you already were"
Yes, it would be permaloss because you can only 100% critters one time. That would be a serious discourager of career assassins on Syndesia, which I love to see. And a funny situation where cretinous murderous thugs roam the backroads, getting popped by talented folk like me
Hell to the no