I wonder about that sometimes. No celeb that has come out has mentioned using forums or other online autism spaces that I know about. They either don't need much support or get as much as they need.
It is probably best if no celebrity name checks wrong planet. We would be flooded with people here for reasons other than support and discussing autism with other autistics and NT allies.
_________________
Professionally Identified and joined WP August 26, 2013
DSM 5: Autism Spectrum Disorder, DSM IV: Aspergers Moderate Severity
“My autism is not a superpower. It also isn’t some kind of god-forsaken, endless fountain of suffering inflicted on my family. It’s just part of who I am as a person”. - Sara Luterman