Good question. Only 3 points. User has 6 karma and is only 65 days old. And there are other posts around the same time with more votes on /newest that aren't on the front page.

At first I thought it may have been a second-chance resubmission by a moderator[0], but it has a recent submission id so that's probably not it.

I guess one of the other two points came from someone with a lot of karma, or there's not a lot of new posts right now?

0: https://news.ycombinator.com/item?id=20206120

Edit: And now it's gone entirely from / and /show, but is still on /shownew ...