I don’t completely agree with this the concept of relays; of being able to host your own relay. in other words own your data and have a permanent record of it in a database that you control, that’s connected to all of the other relays out there and to be able to store and search all of your followers data, and following… and be able to maintain anything you ever posted is significant.

To be able to scale at least your own messages.

Limit sensor ship at least on your own relay.

Message tamper proof via signatures

Self verification.