Given that the same articles come up over and over again, and attract upvotes and comments, it seems clear that the userbase gets value out of reposts. Perhaps

Given that the same articles come up over and over again, and attract upvotes and comments, it seems clear that the userbase gets value out of reposts. Perhaps the HN software should turn the knob the other way, and automatically repost old links which got a lot of attention previous times.