Got diagnosed when I was a small kid, and the doctors told my mother that I wouldn't be able to learn nor do anything, except wearing clothes/eat/taking a bath without someone else's help. Even though they were wrong and I've been able to overcome my symptoms, live a normal life and have some friends, I think that autism isn't something to be romanticized.
As for meeting someone with autism, I've met a young guy who has a shitload of interesting history books and music. However, he's extremely obsessed over UK and its culture, and has the shitty tendency to interrupt others when he wants to add something to whatever they've said or just to rebut arguments. And he didn't only do that to his parents (publicly), but also to me when I've wanted to bring my interests up. If it wasn't for his obnoxious rudeness, I would've visited him more often.
EDIT:
Why do I have the feeling that the butt collector is RockCandy?