The fallacy here is your assumption that we've seen those other posts. We don't come close to seeing everything that gets posted to HN—there's far too much.

If you see a post that ought to have been moderated but hasn't been, the likeliest explanation is that we didn't see it. You can help by flagging it or emailing us at hn@ycombinator.com.

https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...