If someone is high-functioning, why is a diagnosis necessary? Why pathologize personality? I think that was part of what the removal of Asperger's was about. It's unclear if there was any effective therapy for what many don't even regard as a disorder or disability.

There are many personality traits which might be uncomfortable in various situations, but aren't classified as medical disorders. It doesn't mean they aren't worth exploring as part of self-discovery.

With that said, there are some captured into this category who really do need help, which is what the ASD spectrum diagnosis can capture.