To get to know things why you think the way you are thinking should not unhealthily box you to certain personality type.
Now, that you have some understading about yourself, are you forced to be the way your personality is described or are you yourself anyway, no matter what it says?
If you are now forced to be INTP, then yeah, you are boxed, but again, you are not INTP really to begin with because you are insecure of that way you are being. These kind of questions shouldn't matter, because, first of all, you choose to be yourself and you are not manipulated to act a certain way.
It's good to know who you are right now, but it shouln't force your destiny in the future to act a certain way, therefore knowing you personality type is not unhealthy
what came first, the chicken or the egg?
I do not get the comparison for it.
Hypothetically speaking.
If I am a chicken, then I must have come from an egg. To become to understand I am a chicken, my being is not forced upon myself, I am who I am. The question for what was before I came from don't change the fact that I am a chicken now and probably I would be a chicken in a future.