This was a long time ago, around the time that Chris was first coming to the internet's attention. The guy in the photo worked at a Gamestop that Chris frequented and knew who he was thanks to the Encyclopedia Dramatica page. The guy made a bet with a female friend of his who also knew about Chris: if he got a photo with Chris, they'd get married. When he spotted Chris, he roped him in by pretending to be interested in Sonichu, let him blather on about the comic, then got the photo. No idea if his friend fulfilled her end of the bet.