I'd like the name to be "community feed" and "feeds" for short. Reddit was always essentially a collective rss with voting weights. In this way "subs" would still work since one subscribes to the feeds.
Ultimately it's something the devs need to encourage though
It's not that straightforward. Copyright is different in that infringement is only enforced by rightsholders through litigation. That means they hato find you, sue you, and make a convincing argument that your backup is harming their market viability.
On that last point, some personal backup is unlikely to be found to be infringing. It's more problematic if it's something shared or done in a significant scale.