I mean really the only solutions are algorithms similar to centralized social media, although I suppose there’s an opportunity for transparency and instance specific or even individual user choice that you don’t get on those platforms. I feel like the easiest solution is just to be able to have the option to view / sort by votes from across fedi, or just local to your home instance, the instance of the post, or even just the votes of the individual community (although you could join the community just to downvote vs migrating instances is harder, especially if they have closed or restricted migration.