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.
This very much feels to me like the beginning of a Civ game, where we're all fresh nations with different starting conditions that are exploring our territories and building up armies....
The first schism is gonna be fairly dramatic, I'll bet.