Break the algorithmic echo chamber

Showing things by a local vote only would do the exact opposite of this. The majority of Lemmy could be said to be fairly liberal moderate thinking folks, so globally that tends to be what gets reflected in the votes. There are however a handful of notoriously aggressive tankie instances who will pile on and ban at the slightest whiff of someone disagreeing with their perception. Allowing posts from more neutral places like .world to be viewed on these instances through a filter only of their local votes is only going to reinforce that already existing view.