This is what I want. A way for users to create their own “lists” similar to multireddits, which come up on their feeds as part of a super-community, and then they can share that list with other users.

No hassle for the moderators. No change to the system outside of the feature’s own self-contained stuff.

Yes, thanks, I am aware you can check out an external community from a local view. I’m just kind of venting that you can’t do it from the other way around from a user experience standpoint (See community linked on the internet -> check out the content on-page -> tell that page you’d like to hear more from it on your home instance), even though I’m aware it would probably be very hard or annoying to pull off as your browser would have to be somehow aware of your logged-on instances in a way other instances are also built to support.

I kind of wish communities had a “subscribe to remote community” button, but I understand that browsers would probably have to do some light tracking with cookies to make that possible.