If you have an interesting idea, but let's say English is not your first language, or you simply don't know how to write well, then chatGPT can be used basically as a tool to express your interesting idea more clearly.

That's similar to how if you only have poor grammar, a spell checker makes your idea easier to understand to others. It's fundamentally the same idea.

You still need to input chatGPT with something you want to express, and that's what makes the text interesting, the initial idea you want to express, not how it is written, that only makes it easier to understand.