ChatGPT says it will do ads.

Shocker!

Your intimate friend who knows everything about you and is pretenaturally good at making hyper-convincing arguments being incentivized to get you to buy things is way different from ads in search engine.

It's possible to do this well, but it's a tightrope walk across an alligator pit in a hurricane.

I don't have confidence that OpenAI has the culture or incentives to do this well.