I found freedom and self-acceptance in my M-B type, which finally made my life sense. So I love it, and many types of these tests. But I think you nailed why they are so often deemed inaccurate: we each have to answer the questions ourselves, regardless of how well we know ourselves (or want to admit to the type of person we are). It took me many decades to shed expectations and the idea of the kind of person I wanted to be to finally embrace the type of person I am and own it. So I'm thankful for that.