Another thing which I don't personally do, but which might be helpful is to come up with a list of HN regulars who often comment on stories you enjoy, and then

Another thing which I don't personally do, but which might be helpful is to come up with a list of HN regulars who often comment on stories you enjoy, and then check out their comment history (eg for pg: http://news.ycombinator.com/threads?id=pg http://news.ycombinator.com/threads?id=pg)