> I guess it's not clear to me why it's even interesting to talk about their LinkedIn or their PhD in the first place?

Am I taking crazy pills? I didn't bring it up, the guy himself, here at the top of this very thread branch, wrote specifically explicitly that he's a PhD student working on number theory.

> Wouldn't it be more interesting to discuss the merits of the post?

There is no merit, nothing to discuss. I linked the corresponding GitHub below so you can judge for yourself.