Sometimes I have an opinion that something is not HN but I ask "Why is this HN?" just in case there is an unexpected and interesting angle I haven't seen. Even then, I usually have an idea why something was posted, I get the gist of why it is interesting to HN readers even if I haven't grasped why it should "Gratify my intellectual curiosity."

In this case, I have absolutely no idea why this is interesting, which suggests to me that I am missing something that is right under my nose. What am I looking at here?