Well in the example above the manufacturer still has incentive to provide the manual's and guides that describe how to use their products, and if that is subsequently served by an LLM that's totally fine. The only sites that LLM's would have a negative effect on are those that are only hosting content for the ad views.
Manuals don't always well explain how to use their products with everybody else's products because there are too many to do that. But there are lots of people trying things out and might figure out the fine details on how to make various things work. They then publish these how-to pieces (which exist no where else) to the internet, or at least they used to when there were incentives to do so.
> are those that are only hosting content for the ad views.
I might never blog/publish code again amidst all this. I never had ads on my sites. I am not alone in this.