some projects/ideas i found in the last couple of years, that try to solve our current problem of the internet being a centralized structure that is controllable by big corporations or governments and not so easily usable with mesh technology or when not being connected for long amounts of time
https://scuttlebutt.nz/docs/introduction/
https://yggdrasil-network.github.io/
https://www.inverse.com/science/39507-mesh-networks-net-neutrality-fcc
https://redecentralize.github.io/alternative-internet/
https://github.com/cjdelisle/cjdns
Bannability is similar to lemmy. Each “instance” (or “relay” in nostr words) can decide what content/users can live on their relay. The difference is that you are usually connected to multiple relays. So if you want to follow somebody who is banned by other relays, nobody can take that choice away from you. Likewise, nobody can stop you from publishing, though your reach may be limited by relays sharing blocklists etc.