bluemonday said it all! Please Victor give us a proper reply there..
I'm not sure you can call MBTI pseudoscience since we are all(or should be all) conscious that it's not scientifically proved, and pseudoscience is something that try to pass itself as such.
Sorry but, it seems to me you have acquired your opinions from someone you consider wise/versed and are repeating them here... but you lack the fundaments to defend those opinions so you just keep repeating the outlines over and over.
I would suggest you ask a Sociologist with a doctorate. And I would expect they would tell you it is a popular world wide cult with a guru and followers.
I would suggest you to actually study psychology and sociology, noone owns the truth just because they've got a diploma.
Sociology and psychology are not monolithic blocks of knowledge where all its integrative theories agree with one another or complement each other and there exist only incontestable truths which everyone inside the field accept. Doesn't quite work that way.
Philosophically speaking, science is also a "creed" Victor. It is the best damn creed we have, superior to all others IMO, but still a creed.
I'm not bullshitting you, you can find expositions about that on Carl Sagan or Karl Popper books.
Another thing, you must know that the Scientific Method itself is constant subject of research and improvement.
Also just because something doesn't fit within the realms of science today doesn't mean it couldn't in the future(but let's not get crazy here

), and also doesn't mean it's not true(in a broad sense).
And I'm not saying all this as someone attacking science, I'm someone who loves it actually, with scientific education and hoping to get a decent job in research soon

Science is my religion..
You must know that to apply a personality test to oneself will not give valid results.
And for an untrained and unqualified person to give a personality test to another will give invalid results.
And to apply a personality test to someone you don't know is absurd.
So I must ask why is a personality test being applied in this way across the world?
Why do you believe that to be an unquestionable truth applicable to all cases in the whole known universe?
What are valid results? Why the underlying theory of validation is acceptable?
Just rhetorical questions.
Part of the answer lies in its history. And part of the answer lies in a social movement.
Of course personality tests do have their uses. But it is vital to know their limitations otherwise they become absurd or articles of belief in a world wide cult.
Are you sure MBTI has no limitations? How can you be sure of that, since it's clear to us you're knowledge on MBTI is still superficial.
Also personality tests need to be designed by University trained psychometricians and administered in a professional setting.
Why?
I'm not questioning you because I necessarily disagree with you, I'm questioning you because you, the brave crusader against pseudosciences and new-age cults who can only be a follower of science, seem to defend stuff blindly just because it is labeled as scientific knowledge or because someone with a PhD told you so(without demonstration).
I'm very sorry if I'm completely wrong on my assumptions about you, everyone makes mistakes
