Sorry, but there are thousands of videos on youtube of people showing off their "talent." Some of them as lame as this or worse, and it's ridiculous for us to start concluding that they have some disorder. My friend has posted some ridiculous videos of himself dancing to James Brown, and we can safely conclude that he's mentally challenged, but that's because he's a drummer.
Sorry to anybody who has the challenge of having children with any difficulties or disorders, but this is a grown man putting out videos by the dozen. It's no different than the crappy guitarists who put up youtube videos of themselves playing stuff wrong, and then expecting people to say what a great job they did. Overestimating one's own talent does not mean that you're aspergic, or austitic, or retarded, or whatever. And frequently, as in this case, it's funny.
Now, youtube is a public forum, it has buttons so you can link it to your facebook page, etc. I don't feel bad reposting it in this forum. This guy didn't make these to send privately to his friends. He put them out there for everybody and anybody to see.
Like these folks. They made this and put it out there for the world to see. It's unintentionally hysterical. I don't feel bad for one second laughing at it or sharing it:
http://www.youtube.com/watch?v=AC0sR5_NTFo