I agree completely. That would be the optimal solution, it would just take a lot of effort on top of the focus of building the core project. I was hoping to avoid the complexity of building my own ad system and selling the ads directly, but I'm not sure if an ad network currently exists that fits my needs.
I could be completely wrong, but I believe there is a market for exactly what you describe in your mastodon post. At least I am in that very market.