Idea: if you mod a community on a lemmy.somewhere you should be able to migrate it to lemmy.elsewhere which would include all post & comment links being forwarded and subbed users having their subscription updated to reflect the new location.

I’m aware this would be a way down the road as user account migration alone is still not great but it would be a great feature for the fediverse to have to avoid centralisation and mod/server admin wars.

  • hot_milky@lemmy.ml
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    2 years ago

    I think it should be a “copy community” feature, then mods can just prevent posts in the old community and make a sticky that points to the new location.

    Making users automatically subscribe to a community on a different instance (even if it’s “the same community”) is pushing it a bit in terms of moderator power. Also makes things worse in terms of exploits and others have pointed out.

  • El Barto@lemmy.world
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    2 years ago

    Risky. Some hacker exploits a vulnerability, takes over the community and migrates it to some other server… then what?

    Also, if a community leaves a specific server, what stops anyone else from re-creating it in the original server?

      • Die4Ever@programming.dev
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        2 years ago

        To the first, rollback.

        for the first, you still have everyone subbed to the newly created community made by the attacker and all the links are still updated

        if instead of migrating everything right away, you have the original server of the community give redirects for each request, then that won’t help if the original server is closing down, but it’s probably the only right way to do it, I guess you could also have an angry instance admin disable the redirect to keep the community on their own server

        To the second, is that a problem?

        migrating and then recreating the original is actually an issue that Github has when you rename a repo, Github will give redirects for the links to the old name of the repo, but if you create another repo with the old name then the redirects are no longer served and if someone clicks on an old link then they end up at the repo that stole the name instead of the repo that was renamed

        so if let’s say there was an official linus_tech_tips community on beehaw and they moved to lemmy.world, some random person could create the community again on beehaw after the migration to appear official and hijack all the old links out on the internet

        you fix that by keeping the old name reserved after migration, I don’t really think that’s a big problem in this case

        I actually liked @Neato@kbin.social’s idea, instead of “migrating”, you just copy the community and then send a message to every subscriber, close the original community, and put a pinned post at the top, maybe a message in the sidebar too

  • sickpusy@sh.itjust.works
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    2 years ago

    This is indeed a very important feature. It needs to take into account that if similar name community exists on another server how the merger would proceed as well in terms of exporting and importing cache of posts and comments.

    But generally it should be easier to transfer from one instance to other.

    • dudebro@lemmy.world
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      2 years ago

      This is part of why it’s better to have users block servers instead of servers block servers.

  • d4rknusw1ld@lemmy.world
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    2 years ago

    Yeah there HAS to be a way to cache all the posts comments replies etc at a certain point. Maybe every so often it flashes a cache on your server; saves everything; and lets you either create new with what you had OR move or.

  • MrFlamey@lemmy.world
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    2 years ago

    What actually happens when servers are federated with one another? Does the content of each server get mirrored for redundancy, or does it just mean that users can see users, posts and communities from servers that are federated? When they defederate, does content that was previously visible to users just vanish completely, or is it merely that new content (created after defederation) will not be visible?

    • NickwithaC@lemmy.worldOP
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      2 years ago

      Currently it just means you can post to communities on the servers yours is federated with.

      It doesn’t mean you can sign into the other server with your account a la “sign in with Google/Twitter/etc.” That needs to change first.

  • indigomirage@lemmy.ca
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    2 years ago

    At first I thought this was a great idea. But need to understand a bit more about the security implications for those that subscribe and post to the communities that want to do a move. It’s one thing to trust your credentials to the host server, but quite another to implicitly trust the community mod who wishes to move. How would the old posts migrate? How would integrity of the constituent posts be preserved? How easy would it be to inject comments into to historical posts and republish them on the new, official, server? Could you be held liable (whether officially or through reputational risk) for posting content that wasn’t really yours? Maybe there are good mechanisms to maintain integrity of data? I’m just not sure what they are.

    I think there may be implications to this that are not obvious.

    Happy to have these concerns assuaged, of course!

    • Historical_General@lemmy.world
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      2 years ago

      Possibly some kind of democratic voting system would work? Or maybe the mods must all vote to do the move. Just an idea from when I saw another instance do a vote (for federation) using emojis, on a post, and they just counted them basically.

      (edit: The mastadon method seems feasible though posts need to move too.)

  • JackbyDev@programming.dev
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    2 years ago

    That’s just federation. I seeing this community on my instance. I am not a part of lemmy.world.

    • scholar@lemmy.world
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      2 years ago

      no, being able to move the home server of a community is different from being able to join the community from other servers. It would mean that if a server has an issue or becomes an undesirable place, the community can live on by moving somewhere else.