I am skimming over the rules for FidoNet, an international federated volunteer-run network from the dialup BBS era.
FidoNet was very implicitly hierarchical, due to being designed to minimize expensive long-distance phone calls in a time when calling outside of your city was priced by the minute. The Fediverse is a lot more anarchic, and I feel this is one of its strengths. But there are definitely things to think about as a #mastoadmin.
We could definitely use a MastoNews, as well as a FediNews, that every admin and user is made aware of during setup, for instance; right now one must be told about hashtags like the one this is posted in via word of mouth, and most admin-to-admin communication happens when we organize, or are invited to, an informal private chat. Which are incredibly valuable, but I am beginning to feel it may be time for something more formal than that, and something less ephemeral and prone to snap judgements and lack of nuance than a hashtag on a system that limits everyone to 500 character posts!