"If there is one thing the MBTI does well, it’s offering a starting point for self-exploration or sparking helpful conversations about how we relate to and work with others."

So it's not meaningless, it's just an appetizer for more self-exploration? I certainly wouldn't base any big decisions on it, but it's interesting that having taken it more than a few times, my letters never changed until a huge thing happened in my life. Then they did.