Reddit lets you create “multireddits” that show posts from a custom collection of subreddits. It would be cool if you could do the same for different communities, perhaps even pooling comment sections from posts with the same submission link. So you could aggregate content from all the technology/politics/whatever communities on various instances, and see combined comments on the same story from across the fediverse. Then you wouldn’t have to worry so much about being on the “right” instance, and could better leverage the size of the overall community instead of having it splintered and hard to discover.