I think that's more true in image generation than in text? At least, all the money is in LLMs that write code, not LLMs that write O'Reilley-style coding books.

If you have a websites that offers guides, how-tos or tutorials, LLMs directly compete with you. StackOverflow would also have a really good case

After all LLMs don't just code, they also answer questions and give step-by-step instructions. In terms of total userbase those features are used a lot more than writing code

I thought LLM-authored books were rampant in Amazon, though?