Communities on different instances about the same topic should have the option to essentially federate so a post on one appears on all of them and opening any of them shows you the comments from all of them. This way when lemmy.world is down its not a big deal because posting to any news community federates to all of the communities instead of barely having people see your post. Federation could be decided by the community mods and the comments can have a little “/c/communityname@instance.name” on it so you know which community the comment was originally posted on.

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[–] epique@lemmy.world 36 points 1 year ago (2 children)

I like the idea. I suspect it would make moderation a challenge but it sounds pretty useful

[–] NickwithaC@lemmy.world 11 points 1 year ago (3 children)

This was the idea behind MultiReddits if I'm not mistaken. In which case a simple operator like:

Fediverse@lemmy.world+Fediverse@lemmy.ml

Could get baked into the Lemmy core to allow this to work.

[–] JackbyDev@programming.dev 3 points 1 year ago

That's still just two separate communities. Like a filter. That's fine. That's not what OP is suggesting though. What OP is suggesting is much more extreme.

[–] dameoutlaw@lemmy.ml 2 points 1 year ago (1 children)

What are MultiReddits and how do they work?

[–] Hobbes@startrek.website 3 points 1 year ago (1 children)

Basically you can see multiple subreddits of your choosing as if they are a single subreddit.

[–] dameoutlaw@lemmy.ml 3 points 1 year ago (1 children)

Oh wow, that can be beneficial to some people. Thank you for taking the time to explain

[–] starphish@lemm.ee 1 points 1 year ago

Here's how it's done. You just add a +, then the other subreddit. Now your view has 2 subreddits.

https://old.reddit.com/r/books+ebooks/

[–] SmoothSurfer@lemm.ee 9 points 1 year ago* (last edited 1 year ago)

If all federated communities could decide upon to regulate same rules, every one of them could be moderated by their own moderators. But the problem I see here is the things that's being federated is in reality server itself which means it would be impossible(not sure but at least not necessary) to do such a thing. But anyone can easily build an app to collect posts from same communities, it does not require to play with activitypub, just lemmy api.