> the real cause of their symptoms was isolation from their peers

But who are their peers? Sometimes having a word for how you are can help you find other people you'll vibe with, even if it's technically a misdiagnosis. I've seen it both with neurodivergence and LGBTQ, with kids who arguably don't even fit the label but find and return great value in those communities anyway. I'm sure people here can appreciate how sometimes results matter more than adherence to inflexible rules laid down in some book.