@anstey

This kind of address system has been around since the beginning of the internet, so the problems and solutions are well understood.

It's important to pay attention to the server part of the address because this tells you where the account actually is.

For example, the European Union has lots of official accounts on here and we know they are official because they have "europa.eu" as their server. Only the EU has control of that site.

Email has the same issues and solutions.