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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    1 year 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.

    • Kichae@kbin.social
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      1 year ago

      Mastodon uses aliasing for account migration. Your old account still exists on the original server, but it points to your new account. Following the old account automatically reroutes the follow to the new one. This could be done at the group level for lemmy without needing to manually lock the original group or ask users to find the new one.

      • hot_milky@lemmy.ml
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        1 year ago

        The issue is that users might object to subscribing to a community on a particular instance. I guess it’s not the end of the world, you can always unsubscribe but I can imagine some people being very upset to be associated with certain politically leaning instances or worse.

    • Neato@kbin.social
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      1 year ago

      Have something like a mass message to subscribers with a link to the new instance.

      Then the old instance owner can take the old community name back.

  • Gutless2615@ttrpg.network
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    1 year ago

    Data portability for instances and users is imo an essential feature of any fediverse app, and sorely missing here on Lemmy/Kbin. We’ve already seen the issue surface with the hacks in instances last week and other instances going down suddenly. Like mastodon, we need to be able to take our data to whatever instance we want easily.

  • El Barto@lemmy.world
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    1 year 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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        1 year 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

  • RickRussell_CA@kbin.social
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    1 year ago

    But that also makes it incredibly easy for communities on defederated servers to set up shop elsewhere.

    And those communities may be the sole reason that the server was defederated in the first place.

    I think a possible outcome is that the larger instances would have to put a stop to open creation of new communities, to prevent toxic groups from setting up shop and moving all their objectionable content and users into the space.

    • assa123@lemmy.world
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      1 year ago

      I think it can be solved with a two step process. First, the mods of the community and only them can make a request to move from instance A to instance B, and second, the admins or mods of instance B approve the request, importing only the posts and comments from federated users.

    • dudebro@lemmy.world
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      1 year ago

      Meh. I think if users focused more on blocking what they don’t want to see instead of defederating, then this wouldn’t be an issue.

      This is only a problem if you’re one of the children who thinks: “I don’t want to see something, so neither should anyone else.”

  • sickpusy@sh.itjust.works
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    1 year 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.

  • indigomirage@lemmy.ca
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    1 year 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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      1 year 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.)

  • 👁️👄👁️@lemm.ee
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    1 year ago

    It should, but the Lemmy devs are swamped right now to add more features. Before, they had a pretty small dev team too. Now that there’s a lot more eyes on Lemmy, hopefully we’ll get more features while they iron out the stability issues.

    • dudebro@lemmy.world
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      1 year ago

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

  • MrFlamey@lemmy.world
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    1 year 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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      1 year 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.

  • Chozo@kbin.social
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    1 year ago

    I feel like this opens up the doors to “impostor” instances opening up, copying content from another instance and re-uploading it elsewhere. I can already think of tons of opportunities to commit various types of fraud this way, honestly.

    There may also be legal issues with importing user account data and content, as well.

  • d4rknusw1ld@lemmy.world
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    1 year 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.