I don't think iv ever played a beta that resulted in a mass rollback. Part of the reason being no one is maxed and able to test end game content so to keep beta treater chars around to play end game would be ideal. I see no point in mass roll back and fear it may discourage players to purchase or continue playing at launch. Non theless we should reroll on a PvP server and immidiatly start guild ingame at kaas city.