The problem is that self-hosting is pretty difficult. If one could just run a docker image, only setting up the absolutely needed personal info, it would become

The problem is that self-hosting is pretty difficult. If one could just run a docker image, only setting up the absolutely needed personal info, it would become a lot more common. Not on the personal/everyday level, but for professional (money generating) settings, it can absolutely become mainstream. The spam problem is also simply the decentralized system not working; it has no protections against unwanted incoming messages.