When people think about decentralized systems, they often think of Nostr + Bitcoin, but there’s a massive decentralized system for support for addiction/drinking in the form of Al-anon and Alcoholics Anonymous that are spread all over the globe, been running for decades, and has helped millions of people. Each group is local and self-operating. But all follow strict rules regarding operation, self-sufficiency, anonymity and not getting entangled with any public views like politics so they can focus on their mission.