Hi,
First of all, I can relate to almost everything in your post. I took the test out of sheer curiosity about a week ago and was told that I'm INTP-T. The more I read about it, the more the description made sense. Thinking a lot, skeptical of authorities, maybe too honest, and so on. But it's not that suprising. Afterall, I was the one answering the questions about myself, of course it'is accurate. I believe that's the biggest problem of this test. We may think of ourselves differently, there is always bias in this kind of self-diagnosis... And is it even possible to divide all people into 16 groups? Aren't we all unique?
I'm gonna smoke some Jack Herer and think about it a bit more now.
Good luck with whatever you're doing!