• InfiniWheel@lemmy.one
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      8 months ago

      If that were the case, wouldn’t the entire Fediverse be against it? Since they can’t really be deleted because it gets sent everywhere.

      • honk@feddit.de
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        8 months ago

        Yes and no.

        let’s say I have a website that hosts user generated content like a forum or something. Some other person just hosts a mirror of my website that is not under my control. If some user requests me to delete his data, I can do that. i cannot delete the data from the mirror site.

        Nothing else is happening in the fediverse. The only difference is, that in the fediverse the license and technology is set up to encourage mirroring content.

  • SorteKanin@feddit.dk
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    8 months ago

    You can’t delete any text in comments or posts either - or at least not reliably, as any federated instance could choose to ignore deletions.

    You should basically consider what you write or post here public, and probably public for good. But here’s the thing - same goes for the entire rest of the Internet as well, basically.

    • ooli@lemmy.worldOP
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      8 months ago

      I didnt know about that. This is a bit scary to be honest, and the first time I feel a bit taken aback with lemmy

      • LillyPip@lemmy.ca
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        8 months ago

        I don’t know if this works on Lemmy, but Reddit used to be like this and a solution was to edit your comment to different text first (something like ‘I like turtles’), wait about a week to allow the new text to be archived, and then delete it.

        ‘I like turtles’ wasn’t special, but makes it easy to scroll through your comments later when deleting things.

        In Lemmy, your username will still show up with deleted comments, but in theory the edited text will replace the original comment you want to delete in archived views. This method doesn’t work with post images, though.

        Someone correct me if I’m wrong here, please.

        e: I’ve edited this comment thrice in 2 hours. Can anyone tell, and can you differentiate my 3 edits?

        • tigeruppercut@lemmy.zip
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          8 months ago

          On the front end this still theoretically works, but it’s unclear when (if ever) reddit respected it on the back end. They might have an archive of all the text ever put on the site.

          • LillyPip@lemmy.ca
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            8 months ago

            I don’t know how their backend works, but as a former db admin, it seems wasteful to maintain that many layers of change for every user. I would certainly do that in a mission-critical system, but for millions of pseudo-anonymous users, many of whom are shitposters, that would be an insane waste of server space.

            That may be true, but I would be a bit surprised if there were a change-log like that.

            e: keep in mind, systems like this don’t just work like that – you’d have to do extra work to build it that way on purpose. And you’d be doing that extra work, maintenance, and hosting for a user base who aren’t paying you, in a system you’re giving away for free, in Lemmy’s case.

            • Turun@feddit.de
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              8 months ago

              Knowing how comments get changed is immensely interesting data. And if you design a system from the ground up, adding the functionality to save edits in the backend does not take much effort at all.

              • LillyPip@lemmy.ca
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                8 months ago

                Sure, and I can see keeping the last edit (which it obviously does), but every edit? That seems ridiculous if only for the hosting costs.

                • Turun@feddit.de
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                  8 months ago

                  Really? What do you expect is the edit rate on sites like Lemmy and reddit? One in ten comments? I think more like one in 30 or something. That would increase the storage costs by 3% and a small amount of processing power.

                  Hosting costs are dwarfed by media storage anyway.

    • Socsa@sh.itjust.works
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      8 months ago

      Lemmy in general is filled with potential security and privacy holes. The threat surface is just too massive.

      Not to mention it has a bunch of vulnerabilities in terms of just basic forum functionality. A rogue instance can very easily just hijack all sorts of federated content and force it into a certain state as desired. Especially if that content is old. There is not really any mechanism for tracking source authority for federated updates, and there are definitely already signs that this is getting exploited to promote certain content and fuck with vote totals IMO.

      None of this really matters at this point because Lemmy is insignificant, but it kind of places a limit on how much Lemmy can be scaled before it just becomes even more of a cringe propaganda wasteland than it already is.

      • SorteKanin@feddit.dk
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        8 months ago

        A rogue instance can very easily just hijack all sorts of federated content and force it into a certain state as desired.

        I’m really not sure what you mean by this, can you elaborate?

        There is not really any mechanism for tracking source authority for federated updates, and there are definitely already signs that this is getting exploited to promote certain content and fuck with vote totals IMO.

        I’m not sure what you mean by “not any mechanism for tracking source authority”. Admins on their own instance are in control of what happens to the content and they’ll know if another site edits content or whatever as that is sent as requests in ActivityPub.

        What are the signs you’re referring to?

        • Turun@feddit.de
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          8 months ago

          Are updates authenticated? Or can I send an update to lemmy.world from 123.123.123.123 (which is not the IP address of feddit.de) that you have edited your comment to say “I don’t like pizza”?

          If updates are not authenticated this really could be a big problem.

  • Hubi@feddit.de
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    8 months ago

    If you upload an image from your browser, there’s a little popup in the corner for a few seconds that allows you to delete it again. No such thing exists in the apps though and if you miss the popup, that’s it.