It’s as though this proposal was dreamed up by someone who has never installed anything on their PC.

Like are they going to block entire repositories? When you apt get install x from within france to they expect repositories to magically give you the french version?

You don’t even need to do that though. It would be the “fork” that contains the blocking, surely.

eventually it’ll run dry - because the contributors are leaving the site

I somewhat disagree… you haven’t considered the increased incentive for occasional posters to become more regular contributors as existing contributors leave.

As the volume of contributions reduces, each contribution is more likely to garner engagement - those sweet sweet endorphins released when someone upvotes or otherwise engages with your post.