There's another specific class of person that seems helped by them: the paralysis by analysis programmer. I work with someone really smart who simply cannot get started when given ordinary coding tasks. She researches, reads and understands the problem inside and out but cannot start actually writing code. LLMs have pushed her past this paralysis problem and given her the inertia to continue.

On the other end, I know a guy who writes deeply proprietary embedded code that lives in EV battery controllers and he's found LLMs useless.