Something that the social media industry will try hard to stop: users placing an AI agent between themselves and their social media accounts. Smarter clients that front-end a large number of social media services may be the answer to the hassles of federation. If somebody works this right, Facebook/X/Instagram could be Left Behind.
The legacy social media providers face a quandary - prevent all embedding and hide from search, or be front-ended.
When it is their own AI, encourage; anyone else's, prevent.
How do ads work when ever fewer real people are looking at them? Targetting specifically people who don't use AI is one option — I hear there's big bucks in literal fraud ads, and the big players (or at least Musk) do seem somewhat opposed to basic regulatory requirements such as "tell us who paid for these ads".
The legacy social media providers face a quandary - prevent all embedding and hide from search, or be front-ended.