Yup, but reposts are fine when an item hasn't had significant attention yet (see https://news.ycombinator.com/newsfaq.html). That helps offset the random churn of /newest, which otherwise causes many good stories to fall through the cracks.

Indeed, we invited vmorgulis to repost this one, which we sometimes do when a good submission didn't get much attention the first time. I've written about this at https://news.ycombinator.com/item?id=9866140 and https://news.ycombinator.com/item?id=8790134 if you're interested.