The biggest Reddit communities are in open rebellion. Twitter is, charitably, a mess. Twitch started taking a full 50% of the revenue of their top creators, who are furious. What's going on? What's the bigger trend that's causing all these platforms to go so user-hostile?
I would add on - enshittification driven by money, as coined by Cory Doctorow https://pluralistic.net/2023/01/21/potemkin-ai/#hey-guys
There may, however, be some underlying trend that's the reason why so many social media companies are pulling the bait-and-switch right now, simultaneously.