From aelan's hypothetical situation you came out relatively INTJ, wheras everything else was maybe slightly INTP or slightly INTJ. So maybe it holds more weight?
Perhaps an INTJ can procrastinate and not feel the need to apply things more easily than an INTP can be meticulous and ambitious? I don't know.
I know, neither of those are particularly compelling (or even accurate) arguments, but the 'vibe' I get is not exactly INTP.