Because let’s say you’re Tom Hanks. And you get TomHanks@Lemmy.World
Well, what’s stopping someone else from adopting TomHanks@Lemm.ee?
And some platforms minimize the text size of platform, or hide it entirely. So you just might see TomHanks, and think it’s him. But it’s actually a 7 year old Chinese boy with a broken leg in Arizona.
Because anyone can grab the same name, on a different platform.
Because with celebrities come fanbases.
Imagine if whoever the new hot artist is put out their next music video exclusively on Peer-Tube.
Suddenly millions of people would be using peer-tube. Then they’d ask “what is the fediverse?”
If you want to keep the fediverse small and isolated, go stay on hexbear, or whatever that one isolated instance is.
I would rather every single human be using the fediverse.