There is! Humans find them and software reposts them. It's called the second-chance pool and is described at https://news.ycombinator.com/item?id=11662380 and various links back from there. There are so many good submissions that get overlooked by the randomness of the initial traction wave—especially the quieter, offbeat kind, which often are the best kind of submission for HN, uncorrelated with anything else. I sometimes email people to let them know their post will be re-upped, but it looks like I didn't do that in your case.
By the way, if anyone sees that kind of post languishing without attention, please let us know at hn@ycombinator.com. It's clear that many if not most are still getting missed, and curiosity is what we're optimizing for, so we love getting those emails. One day we're going to write software to make this system more formal and open it to everyone.
A few days ago I saw a post dated an hour ago, with comments from "7 minutes ago" - when I swear I saw the same post with the exact same comments hours before.
By the way, if anyone sees that kind of post languishing without attention, please let us know at hn@ycombinator.com. It's clear that many if not most are still getting missed, and curiosity is what we're optimizing for, so we love getting those emails. One day we're going to write software to make this system more formal and open it to everyone.