I can't think of an expac that has more people consistently upset and un-pumped, well...ever.
Normally with WoW everyone seems stoked before an expac drops, and then the dissapointment sets in (or people love it, either way).
This is kind of a weird, dark time it seems. If online opinion is right it seems like everyone is locked into an annual pass and no one likes at all what they're seeing in MoP.
WoW fans have always been an unhappy disgruntled bunch but this seems unprecedented.