Jerry Seinfeld used the word really a lot, hence this scene from 30 Rock:

Neil Genzlinger attacked the word in The New York Times:

I’m not talking about “Really?” as a request for more information or an expression of surprise. I’m referring to the more recent, faddish use of it: delivered with a high-pitched sneer to indicate a contempt so complete that it requires no clarification.

Jerry Seinfeld responded(Via The Times Is On It).