Not to be rude but I've gotta call BS considering in over 2 years of reading messageboards, playing the game and being generally involved with the community I've NEVER heard anyone complain about such a massive rollback. Long ago I've heard of people losing a few hundred XP (or gaining if they died before the 'rollback') but this hasn't even come up in a long time.

I'd be hard pressed to believe that this could happen without a massive uproar from oen or many in the community. It's basically just not possible unless you got caught in some kinda time warp or something lol