I think you are missing the point.

> who tf uses prompting to "pretty please don't cheat on this"?

People who don't understand how LLM's work. Kids, teachers, your next door neighbor. CEOs and government officials.

I am not trying to argue that the author doesn't understand how LLM's work; they clearly do. Their prompt was written in a way that leaves those assumptions implicit, in a similar manner to those non-technical folks using LLMs every day.

> the best practices for ages...

We cannot expect the entirety of humanity to understand / use LLM best practices. We need to figure out how to ensure LLMs operate as the majority of humanity expects despite how they are implemented, and until we can do that, do our best to prevent them from being used in an unsafe manner by the nontechnical population of humanity.