This post has over 470 comments and was posted 14 hours ago, yet I wasn't able to find it on HN from the first 3 pages. On the third page I see lots of posts w

This post has over 470 comments and was posted 14 hours ago, yet I wasn't able to find it on HN from the first 3 pages. On the third page I see lots of posts with lower number of comments and an earlier post time. I had to use the search at the bottom to find this story. Why?