and actually, from a perspective of subjective self-analysis and
  "social face", they're perfectly acceptable.

  After all, people identify as their career. "I am a scientist"
  for example. Ok, is there a test for what makes someone
  Scientist vs not?

  In short, it's pragmatic. smile emoticon You don't like the
  test. Noted. It doesn't fit in your worldview. Noted. Everybody
  should agree with you. Noted. It's a self-identification marker.
  Your sarcasm is noted.   Is "everyone" a nice little box? How
  about "us"? Seems your box is a little broad.   They've declared
  it 'dead' from before I ever took the test.

  "Goodbye the fad"? No. Nice try BBC.

  I first took it in 1994 online. I joined groups. Turns out we
  had a lot of shit in common.

  I left the groups. Rejoined one in 2014 on Facebook, 20 years
  later.

  Guess what? People talk the same way on there as well.

  Does it prove anything? It proves that people who self-identify
  similarly exhibit socially similar behaviors.

  It's dangerous when EMPLOYERS use it. Or TEACHERS to categorize
  students.

  Same is true for Gardeners Multiple Intelligences.

  Also true for "left brain/right brain" - also debunked.

  But: We're not in a lab. We're socializing and trying to use
  shortcuts to understand how each other sees themselves in a
  quick sorting manner.

  It's like agreeing to a glossary. Common language.   Fair
  enough. I'm also very careful what categorizations are applied
  to me. I accept very few. I happen to accept INFP because it's
  suitable in conversation. It also gives me an excuse when I want
  to get the heck out of a party. "Oh he's introverted". "Ah, ok".