I feel like people are complaining about wrong thing. At least for me it’s not a problem that there are different communities. To me problem is same posts. What would be great is to have same posts merged into one post with comments from all its duplicates. This way communities are independent, lemmings don’t get to scroll same copy-pasta and discussion of same thing is visible cross communities/instances. Question is how we define “same” is it carbon copy of post, or same content only? Alternative titles can be shown if content is same but not title.