This is a pretty good example of how certain metrics aren't always relevant to reality, or, at least match the headline. The word "feed" implies that HN depends on the contributions from/links to these sites, but most users of HN would argue that domains such as github.com, github.io, nytimes.com, etc. are far more prevalent and important to HN than virtually any of the domains listed here. HN depends on daily, traffic...It's not that the sites with high medians aren't <i>good</i>, but they don't "feed" HN...Median score in this context is a trivial metric. Number of top stories, daily, by domain would be far more relevant in showing what "feeds the beast", as they say in the media business.