If an account is created on any specific server, like !Lemmy.world does that mean if the server does shut down, the account data is lost?
Also for username availability, could we create an account in a different server where the name is not used yet?
Similar, but different question, all these Lemmys different? For example is there one primary Lemmy or all they all different with possibility duplicate communities?
Duplicate communities. Nothing is the primary. Everyone can run their own server.
Every Lemmy instance I’ve seen has a technology community for example.