I found GREAT usefulness in learning my type, and reading up on that category.
At the risk of sounding a little woo-woo, I got goose bumps when I read that profile.
It mentioned that INFJ's could be enigmatic, and can be difficult for others to understand. It mentioned that INFJ's are often mistaken for extraverts, because their feeling component is so strong. It pointed out that INFJ's are almost empathic in their ability to resonate with someone else's feelings. It pointed out that INFJ's often feel the pain of others so clearly that it is quite painful personally.
You have NO idea how comforting it was for me to read all that.
I have had to tell people repeatedly, for years, that I am "actually" quite introverted.
Actually.
Quite. Introverted.
Off the scale, almost. I'm a scary diehard true-blue card-carrying introvert. When you look up "introvert" in the dictionary, you find my picture. It was a weird fact that even though I KNOW that I feel this way,I had to SELL it to people.
No one believed me. I had people tell me that's NOT the way I feel. Uh-uh. YOU are an extravert, honey. Admit it.
And when I would pull away from the crowds, and go off and happily be by myself for hours, (one of the funniest things, to me, is the question "do you enjoy solitary walks?" My feeling was... um... who doesn't?
) I really would confuse people. They sometimes thought I was angry at them, or something.
I have never typed anyone else, although I have sent this software on to people. I do, however, now look at a guy I work with and say "wow, is he ever a "P".
I wouldn't ask him to take the test and tell me his type, but his "P"ness just radiates from him. And since I am quite heavily "J", being aware of our differences does make a difference in our relationship, at least for me.
So where am I going with this? I'm not sure, really.
Just... there
is value in knowing your OWN type. Quite separate from knowing how your type interacts with others.
I feel like I've finally been given permission to be me.
I'm not a weirdo. I'm just an INFJ, dammit.