Great point. It'd be interesting to be transparent about rings of people who frequently upvote on the same post. I'm sure they have that info. It might actually be interesting and open up some level of transparency -- whether among the YC companies (and the ability of their job posts to somehow make it to the top) or among other subsets of the coding community like node.js I have nothing against YC companies; I'm friends with lots. I have nothing against promoting a link you post on HN.