No, it wasn't a coworker; it was a customer's adult child they left with us now and then more or less to babysit. He didn't misuse it at all; the idea of "neurodivergence" would be impossible for him to get. It was more like "rain man" without any of the mythical savantness; i say moderate because he wouldn't need a full time caregiver and could probably act on his own, but worrying about "reading a room" was impossible for him; it never entered his mind.

Having moderate forms of autism is incredibly hard, yes. Severe forms you would need a caregiver and medication for the rest of your life. It isn't just socially awkward behavior or insensitivity, and there's a temptation to medicalize or self-diagnose behavior that way.

Disability chic is medicalizing things that more or less are normal behavior. I feel like with autism people try to make an identity or medicalize some normal traits. I keep using OCD, mostly because I do worry I suffer from it. I am aware of the irony, but i do this more because i suffered from signficant abnormal traits like checking compulsions; hitting a pothole and immediately being afraid i ran someone over, etc. Worrying that you didn't lock a door despite tugging on the doorknob 6 times before you left.I have it light because I don't need drugs to manage it and I'm able to function somewhat in life (though as an adult i worry how much of who I am was because of it)

There really isn't overlap with anything else; like people misuse OCD to mean "neat freak" or forgetful or what have you. Autism though people seem to have some of that; I mean, my customer's son has to be told to not get in people's spaces while many non autistic people may stand too close. It's harder to untangle.