If the game were going to HP based rather than skill tree based this entire discussion would be moot, simply set the level at which you can PK high enough it takes a really dedicated player to even get to that level. (I\'ve been a big fan of that sort of approach ever since m59)
It looks to me that with the skills based approach the devs are taking the most prudent path possible, and I suspect, if they are all as level headed as they sound, if a need for looser PK rules becames an obvious need they will reconsider.
Based on what I\'m seeing I\'d say go ahead as planned. I\'m really excited about the project and look forward to watching it\'s progress closely. I wish my skills ran more into the programming area (I\'m a Network/Database admin type) so I could help. I honestly believe projects like this along w/ some of the emulators that allow people to create their own worlds are the real future of the MMORPG.