I read your posts. Interesting. I also find privacy to be an important desire on these platforms. That being said, being that anyone can open an instance and have access to the raw data, wouldn’t many of your features be logically impossible to implement under a distributed server philosophy.
Or maybe better said, individual servers could certainly implement certain features but they would no be able to share the raw anonymous data without breaking their security. Or they could anonymize their data but what server would allow this and not block them rapidly. Thus I would need an account on every platform to access all content.