Power-leveling is absolutely BROKEN

[Krausus]

So far, from reading ALL the posts in this thread, you sir are the only one to come close to providing a valid reason why PL-partying should be allowed (i.e. playing with LS-mates). Getting 20 times more XP is not a valid reason, in and of itself.

yeah but I think that is a separate debate and has more to do with XP balance than anything else. Unfortunately there is so much hyperbole in this thread a new one would need to be started with a disclaimer of prove your claims.