If Lemmy and Mastodon continues to get popular, we will eventually get Instance wars.
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.
When you play the game of instances, you either get popular or you die.
(I don't think that it's going to work that way, but with enough popularity corporations are gonna want to fuck with it for sure.)
Die? What is it with assuming that small instances will inevitably die? There are people out there who want small instances, they will keep them alive.