I'm not making fun of him because he's autistic.
I'm making fun of him because he's also a terrible person who happens to have autism.
And you don't believe his poor social behaviour could have anything to do with the disorder that makes it hard for him to understand social cues and rules? He could be a nice person, but it's not as easy to him as it is to us.
The dude has been made fun of by half the Internet already, don't you have anything better to do like looking up info on proper nutrition or exercise plans to work off your mantitties?