Actually, I bet same kind of people hang at both message boards but the difference is HN favors "experienced users" (with high karma etc) over newcomers, to cut

Actually, I bet same kind of people hang at both message boards but the difference is HN favors "experienced users" (with high karma etc) over newcomers, to cut back spam primarily. So if someone with a higher karma had posted the same link, probably it would have stayed on the front page for longer, resulting in more upvotes. I'm not saying it's good or bad, but just different.