>>12234362am I not getting the joke here? that didn't answer the question and was also a completely incorrect description of autism. It's something you're born with like adhd, down syndrome, or the gay
>>12234341hmm
well, for one it's a very simple style that pretty much anyone can emulate. the fanmade characters also all have the same body type as sonic rather than a more unique one like, say, big the cat, suggesting that these people just follow a template.
the games themselves are fun and popular, meaning that many autists are exposed to them as children. they probably have very few friends at that age and therefore bond with the characters.
the purpose of the art is likely either a self insert into the world or an attempt to participate in the community of those who make it