LLMs are only valuable to me at the moment explicitly because ads are not part of the scene. Maybe for a while others will use it, but it will be on the exact same treadmill as anything else ad-based: you will become the product, any recommendations are worthless trash, and it is oriented to show as many ads as possible, rather than providing useful content.

Ads destroy... pretty much everything they touch. It's a natural fit, but a terrible one.