I forsee in the future federation boards, like servers that work together to vote on good/bad actors/instances and from those other instances could subscribe to their moderation. Still open moderation, you can still set up an instance that doesn’t adhere to group A or group B’s mod lists, but for the vast majority of people you could have a good experience.
For example, dunno how many saw but had to remove an anti-LGTBQ post in a LGTBQ community today. I’m sure I’m not the only mod who removed that from their instance today, it’d be great if there was a way other instance admins could share that and “team up” with moderation.