The difference is WHO FUCKING CARES? Do you not fucking get it? The fucking fediverse is not yours, mine, or theirs. If they don’t want to be a part of it they DON’T FUCKING HAVE TO.
This is as stupid as shitting yourself in furious anger that a Linux user would dare to use Linux for mathematical computing instead of serving web pages because CLEEEEARLZY there’s only one way to use the software and that’s the way that you, Stumbler, personally choose to use it.
Are you even aware that there are instances that aren’t federated? At all? Anywhere? Because you can do that. Because it’s just software and who gives a shit how anyone else chooses to use it?