It's just something I've noticed about myself. I might *think* I'm such and such a way, or I might think I come across a certain way, but what I think/perceive about myself might be quite different from how I actually come across to everyone else, or in comparison/contrast to everyone else. And, even though I think I'm a certain way -- say, even if I think I'm the most awesome piano player in the entire world (which I don't think, lol) -- in comparison to people who actually ARE genius piano players, I am not.
If we were going by 'preferences' and assessing those preferences from things such as test-taking (which, ultimately is me assessing myself, but as has already been discussed, the questions themselves can be poor), I am INTJ. If this site had been up and running from 2000-2004, I'd be registered as INTJ, as I had only done the tests and didn't know much else nor had I interacted with the various types to really know.
End of story!! woo hoo!!