I played Aion and the open-world PvP is what made me quit once I was out of the areas where you could zone to the non-PvP area. (can't remember the name right now) People were just major JERKS. Ganking people simply trying to quest or get to a dungeon instance or even just gather. As long as they don't tie really neat rewards to it (looking at YOU pvp hairstyle) and keep it to its own instance, then go for it. I just won't have any part in it, thank you.