This is not intellectually interesting. It doesn’t gratify ones intellectual curiosity.
Okay, this page is mostly just a bit of fun. But there's seriousness behind it.
I'm very glad you're not the gatekeeper of what's here and what isn't.
Nobody is saying that. HN content typically caters to a prticular kind of geeky intellectual curiosity - that I think often has broader interests than you're giving it credit for.
As someone else pointed out this post would fit nicely into Douglas Hoftadter's Metamagical Themas - a book with impeccable geek credentials.