That’s only for showing a domain on your profile. What I meant is using a domain as your username, so if you own example.com and used that as your username people would mention you by writing @example.com. A DNS record delegates the domain to the right server.
It doesn’t port over any old comments/posts, but I’m pretty sure that when anyone @'s you, it’s forwarded to the new account.
Mastodon already does this
That’s only for showing a domain on your profile. What I meant is using a domain as your username, so if you own
example.com
and used that as your username people would mention you by writing@example.com
. A DNS record delegates the domain to the right server.