The federated concept is nice. But I feel like what will happen in the end is that most of the content will end up on few instances. This still gives power to the owners of these instances, and if they delete the instance a lot of people would lose accounts?
What would be your ideas to improve this and have less centralization?
Make it possible to migrate from one instance to another, with all of your account history. Not sure about is it technologicaly possible to prevent making accounts with fake history.
Good idea. Possibly be able to download locally a database od your account and upload it to another instance