Because let’s say you’re Tom Hanks. And you get [email protected]
Well, what’s stopping someone else from adopting [email protected]?
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.
This solves the issues of having the same username across all platforms, assuming you host an instance for every platform you want to use. And also mske those domains private. But it doesn’t address that same username being used on another instance/domain.
Like imagine someone had the usernsme [email protected] and was impersonating you. If you made your living off your name, an imposter would affect your image.
If I was making my living off of my name, I wouldn’t even know some random user with no followers from a troll domain exists.
Whatever the reason celebs don’t take to the fediverse, this isn’t it…