IMHO regarding coverage: clients don't need to find a minimum set with maximum coverage. Clients can just connect to 500 relays to follow 500 people. It still works. But of course it is more effici...
I have benchmark updates, and a few real world practitioner updates landing today
https://github.com/nostrability/outbox/pull/20
https://github.com/nostrability/outbox/pull/20