If the descentralization of social networks continue, we will have to prepare for the eventual rise of the instances wars, where people will start to fight about which instance is better and which one is weird to be in and so on, but that’s for the future of us all.
It’s not harder than what we’ve had to do with e-mail spam. Which has been enormously successful, with 99% of it not even getting delivered to your spam folder but just dropped entirely.
Instances will het as much visibility as they’ve earned through successful engagement across instances. The visibility of a new instance’s posts will increase over time.
This is why yes, there needs to be a feed algorithm. “Just show it to me chronologically” is the most naive thought, and people still have it all the time. There are just so many fundamental things that need to go into a sorting algo. We’re not even talking about personalization.