Seems he's relying on the communities/owners behind the sources to moderate and keep bad content away. I think it's a good bet. Would expect to be a LOT harder

Seems he's relying on the communities/owners behind the sources to moderate and keep bad content away. I think it's a good bet. Would expect to be a LOT harder for a "growth hacker" to make his way up in HN points as opposed to Google rank.