Yeah, as far as I can see there's really no reason for everyone to be whining so much. There's no reasonable basis for the conclusion that Thief 3 is going to be a bad game (no basis, that is, other than everyone's totally unreasonable expectations).
Besides Randy Smith leaving the company, the focus on consoles, Invisible War and people's accounts of Harvey Smith's displeasure at E3 (and his recent departure).
Even assuming it does suck, most normal people out there don't even get so worked up about disappointments in life that are truly significant. All this tells me one thing - if you're complaining about the quality of a game that hasn't even come out yet, you need to get a life. Even if you're complaining about Deus Ex 2, you need to get a life! Complain about something really significant, like the current administration in the U.S. that is making us all look like barbaric fools.
That's nice, but this is a gaming site and these are gaming forums. On a political forum or even a general forum I, too, would expect discussions on that topic.