I don't get this one very often. I used to, but I guess I've mastered presenting a more "upbeat" neutral expression than I did in the past. Either that, or I look pissed off and people are afraid to say anything to me!
I can understand the frustration y'all are expressing, but I've got to say that it's a bit amusing at the same time, considering that there is currently a thread active about how frustrating it is to be asked "How are you," when people don't mean it. Then we have this thread, where people are upset by people wanting a real answer to, essentially, the same question. 