People were crying about not having anything to do so now you have TONS to do!
Yes, because they totally answered the prayers of everyone who was tired of 3 dungeons and the same 8 raid bosses for 9 months in Dragon Soul by putting in a bunch of mind-numbing daily quests.
I wasn't one of the ones complaining, I just played with alts and let my sub lapse until there was new content, as did a great many other people.
It would have been nice to have new dungeons or raids added at the end of Cataclysm. If they'd added 500 dailies, they would still have lost a million subs.
Nobody asked for dailies. Nobody had issues with tabards awarding rep. And putting in 4 billion dailies won't make people who run out of dungeon or raid content not complain when it is used up. (and yes it will STILL get used up, even if they dribble it out like they are clearly doing now)
Dailies are nothing more than a continuation of the questing time suck that is levelling. If the game consisted of nothing but levelling quests, it would not have 10 million players.