Can you sell more ads with AI?

100% Yes. We can (because people are going to ask how to do X in postgres and AI can reply how to do that in postgres with a side-note that this Sponsored product does it out of the box). however, can you sell more ads (by tagging them as "ads" or "Sponsored") - That is where the gray area shows up (IMO).

Obviously, this is still evolving but I guess something along that lines could be done, if one is too serious to monetize it. In my personal opinion, I think right now companies are focussed around capturing market than monetization.