Does ActivityPub send those to other instances, or does ActivityPub only send the original post and the rest (upvotes, downvotes, replies) are stored only on the original server where the post was made?

  • peereboominc@lemm.ee
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    1 year ago

    What if someone sets up an instance, make a post and manipulate the upvotes? Just give it a million upvotes. That would break the whole system…

    Or a bit more subtle, every upvote is multiplied by 10.

    • Max-P@lemmy.max-p.me
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      1 year ago

      Individual votes are federated but not by number but by user, so you’d have to set up fake users and then federate a vote from each of them.

      That makes it rather easy to detect and identify and get that particular instance defederated.

      Votes will still go from origin instance -> community instance -> other instance, be if the other instance has defederated the origin instance then it simply gets dropped.

      • Teppic@kbin.social
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        1 year ago

        If you use kbin you can even see who has made each upvote, so yes easy to then look for patterns of voting together and also at the profiles to see if the accounts looks like real people etc.

        • Max-P@lemmy.max-p.me
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          1 year ago

          Until a mod catches it and reports it to the admins, yeah.

          Lemmy isn’t the absolute most well thought out platform in many regards, I don’t think anyone expected Reddit to actively go hostile and drive such an amount of users to Lemmy.