With GenAI, I suspect a lot that could be ad-supported will evaporate anyway.

How can you get a reputation for a high-quality well-researched podcast(/youtube channel) when your voice(/face) can be cloned by the advertiser who buys a slot somewhere in your podcast(/video) to sell some snakeoil?

Are those your friends you're seeing on social media enjoying ${brand} or supporting ${politician}? Or did your friends all leave the site years ago, and these are just fakes, legally licenced by the advertisers from the social media firm thanks to a clause in the TOS that's hard for non-lawyers to comprehend the consequences of?