Plebbit is a selfhosted, opensource, nonprofit social media protocol, this project was created due to wanting to give control of communication and data back to the people.
Plebbit only hosts text. Images from google and other sites can be linked/embedded in posts. This fixes the issue of hosting any nefarious content.
ENS domain are used to name communities.
Plebbit currently offers different UIs. Old reddit and new reddit, 4chanw, andhave a Blog. Plebbit intend to have an app, internet archive, wiki and twitter and Lemmy. Choice is important. The backend/communities are shared across clients.
So, what you propose just isn't feasible.
Who is the one who gets John Doe? First come, first serve, and never again available?
It doesn't have to be your name. How about everyone gets a random phrase?
magneticdeerflyinginthesea.person
It's much easier to remember than like 7 numbers