My asking for people to type me and discussions of that sort over vent are more entertainment than anything else. I was always happy to be anything, as long as it made sense and I could still be myself.
Apart from Keirsey, who really doesn't deal in Jung or MBTI, ive not read many works which justify such behaviour. In fact centralised forums such as INTPc are exactly the fault of those who dont wish to grow through conflict and consideration, instead they use their group assumptions and affirmations to pat one another on the back and further their own delusions.
So essentially they hide from improvement and risk, while trying to assure one another that this is ok. Where does the theory come into this then?
It is the catalyst definitely, but not the cause.