I didn't read that part. I had no reason to assume you were making something up :|
I think that it applies to any generalization, though. Whether or not you were sincere (to clarify, I mean "sincere" over whether or not there was a study x|). Blahhh.
In all honesty, my comment was prompted moreso by the discussion on discrimination in relation to observed group averages which was prompted by your post, rather than your post in and of itself.