I was a MB skeptic back when I was first introduced to it, but when I read the descriptions of the types I found that I recognized myself in the one I got in the tests and accepted it as at least an approximation of who I think I am. INTP is the only one I ever got before, and that sounds good to me, I get rock hard for theoretical stuff and all that jazz. Took it now though and got INFP (Introvert(67%) iNtuitive(50%) Feeling(38%) Perceiving(44%)), and I realized that recently I've had a major spell of idealism about the world in general, taking on a "the world is always getting better" sort of attitude and beginning to despise cynics (which I was one of for quite a while) for spoiling the wonders of the world for themselves and others. I hope it isn't a silly mood swing and lasts a while, it's so much more healthy for me to view things in a overall positive light, and even if my hope in myself falters, at least I think the rest of the rest of humanity will turn out all right in the end.