I'm pretty deep into these things and have never had them solve a harder problem than I can solve. They just solve problems I can solve much, much faster.

Maybe that does add up to solving harder higher level real world problems (business problems) from a practical standpoint, perhaps that's what you mean rather than technical problems.

Or maybe you're referring to producing software which utilizes LLMs, rather than using LLMs to program software (which is what I think the blog post is about, but we should certainly discuss both.)