I actually don't mind this too much -- because "Yeah", "Right", "OK" and so on are often just used as passive acknowledgements that I've said something, rather than an assertion that what I've said makes sense, is agreeable, and is fundamentally correct.

I'm with you on this one. It takes a certain kind of hubris to reply "Correct." or "Bingo." as if I have just discovered enlightenment with which you were pre-ordained and now us proles are seeing "the light".