I agree with all of that, but I do feel that I have to point out that all the M-B tests I've taken (usually because I'm bored, and to see if I always get the same result -- I do), they always list the degree to which your test result exists along each axis. For example, my test was listed at 11% iNtuitive and Thinking, but 56% Introverted and 78% Perceiving, which, IIRC, was about accurate with most of the other ones I've taken.

And to some extent, the vagueness of the questions forces you into more of an existential mode of thought, rather than focusing on specific incidents.

But again, no one should make any sort of life-altering judgements based on this sort of bean-counting armchair psychology.