The 7.5 weeks were not from naxx's release but from when attempts where started, and this is partially because of having to come up with a competent way of doing it on your own and partially because it took 8 geared tanks to do it, but you could hardly call 25 anub in ToGC the hardest encounter in the game when ensidia downed it the day after release. Currently hard mode anub is the hardest encounter in current content, but when people say it is the hardest encounter the game has ever seen, they are simply wrong.Originally Posted by harky