Which, by the way, is also a great way to verify certain people. If a Lemmy account is registered on a server with a domain that is owned by a large broadcast company for example, it’s easy to check whether the user of that account is who that person claims to be.
The municipality of Amsterdam set up their own Mastodon server registered to amsterdam.nl, so it’s clear their Mastodon posts are genuinely from the municipality without any external verification schedule. If the mayor would want to post herself, she could simply get an account on that server and everybody knows it’s genuinely her.