Communities on different instances about the same topic should have the option to essentially federate so a post on one appears on all of them and opening any of them shows you the comments from all of them. This way when lemmy.world is down its not a big deal because posting to any news community federates to all of the communities instead of barely having people see your post. Federation could be decided by the community mods and the comments can have a little “/c/communityname@instance.name” on it so you know which community the comment was originally posted on.

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[–] 1984@lemmy.today 3 points 1 year ago* (last edited 1 year ago)

Good idea but this will lead to even more centralization if it's decided by the instances who their communities federates with.

The top ones will federate and leave the small instances out of the loop. Or put demands on other instances they have to fulfill to be part of the community federation.

It all ends up similar to Reddit in the end. Maybe it's unavoidable and we cant have properly decentralized now when it's centralized.