Well speaking for myself, I am pretty clueless on stuff like whether people think the things I say are generally interesting or generally boring. I wouldn't be

Well speaking for myself, I am pretty clueless on stuff like whether people think the things I say are generally interesting or generally boring. I wouldn't be ashamed to use Mark's site to try and learn stuff about myself. Of course, I'm sure the factors you mention provide subconscious motivation as well.