Actually, I think it was random. This guy said nothing but, "I'm just a frustrated idiot with a guitar who can't even play or sing that good." Listening to the song, he's correct about that.
He still hasn't signed a record deal, as far as I know, and probably shouldn't. He had no choice but to get paid by the media services once it went viral. He owns the damn song whether he likes it or not.
I don't think he wanted any of this attention. The song got popular from some nothing website that records mostly mid to lower talented West Virginia artists. It's hard to blame him for what the media made it out to be.