In my experience, at any given time at least one article from http://news.ycombinator.com/newest http://news.ycombinator.com/newest is on the front page of HN

In my experience, at any given time at least one article from http://news.ycombinator.com/newest http://news.ycombinator.com/newest is on the front page of HN. That seems like a pretty good indication that all submissions are getting adequate attention.