Im not denying DDoS attacks are possible, but in the case of Blizzard is not the case, when I started in WOW they has over 11 million users, since then the number goes down, then when expansions come, the number rises up again close to that, and there is allways delays during logins and lag in the game during the introduction of the expansions, as a matter of fact, during one of the previous expansions blizz offered free transfers to less populated servers to aliviate the load on high pop servers, meaning there servers where not to the task to handle the ammount of people returning to the game and the new subscribers. In this expansion i s exactly the same, there server cant handle the returning players plus new customers, before the wod expansion they had around 6.5 mil players, since the exp that number has gone up drastically, so that is proof of my point, hence the DDoS attack picture they are trying to paint is BS, further more, the reduce the ammount of players per server to minimize player ingame lag, but that does not stops DDoS attacks if that was the case.