I live in the UK and I've never heard of him. I didn't find most of his comments to be that honest in themselves really, it just seemed like he really just hated Drake for no real reason.
Same here and i'm often surprised by how often I find someone else who regularly watches him. And not just videogame fans. People in general seem to get a kick out of him. And like I said, all of his reviews are like that. They're in no way conventional. He just points out all of the games flaws and usually just inserts a sentence or 2 at the end to explain that they're not bad games. He's just pointing out their flaws. The people who watch are well aware of this and don't base their decision on buying it on his review alone.
I am an Uncharted Fanboy! That was funny, but to answer your question Drake is just put together so well as a character you dont see that very often, and if you played Uncharted 3 you would know that Drake continues these quest for treasure because he is attempting to bury his past!