I've don't many of those tests, psychometric and profiling and it's interesting how accurate they can be, although I've seen some that have been a little skewed. It's interesting how people take them though, on a personal level, how it can change their behaviours initially until they lapse back into who they really are because it's pretty difficult to fake it for long.
I actually think there's merit in knowing, in understanding oneself in that way and on deeper levels.
Healthy: "this test says I fit that group. How do I feel this reflects my actual traits, and how can it guide my growth?"
Unhealthy: "I"m an ENSP Sagittarius with a magenta aura, and my spirit animal is a mountain goat. THIS DEFINES ME NOW."
Yeah, you said it better than I did, but that was what I was getting at.