Having actually just played this game, I didn't have any problem with PKers myself. And the few people I did see while I was doing quests, were busy doing their own thing, and no one was really even talking, much less killing other players. I don't see what all the fuss is about.
EDIT: Apparently there will be a PvE and PvP (PK) server each for the west coast and east coast. PK servers will have safe zones like towns, and PvE will have arenas. Right now only 1 server is open on each coast for Ether Saga CB, but nobody really knows what's going on with PvP servers at this point so we don't know which server is which yet.





