The best part of the fediverse is that anyone can run their own server. The downside of this is that anyone can easily create hordes of fake accounts, as I will now demonstrate.

Fighting fake accounts is hard and most implementations do not currently have an effective way of filtering out fake accounts. I’m sure that the developers will step in if this becomes a bigger problem. Until then, remember that votes are just a number.

  • Sean Tilley@lemmy.mlM
    link
    fedilink
    English
    arrow-up
    50
    ·
    1 year ago

    Honestly, thank you for demonstrating a clear limitation of how things currently work. Lemmy (and Kbin) probably should look into internal rate limiting on posts to avoid this.

    I’m a bit naive on the subject, but perhaps there’s a way to detect “over x amount of votes from over x amount of users from this instance”? and basically invalidate them?

    • jochem@lemmy.ml
      link
      fedilink
      English
      arrow-up
      21
      ·
      1 year ago

      How do you differentiate between a small instance where 10 votes would already be suspicious vs a large instance such as lemmy.world, where 10 would be normal?

      I don’t think instances publish how many users they have and it’s not reliable anyway, since you can easily fudge those numbers.

      • Sean Tilley@lemmy.mlM
        link
        fedilink
        English
        arrow-up
        7
        arrow-down
        1
        ·
        1 year ago

        10 votes within a minute of each other is probably normal. 10 votes all at once, or microseconds of each other, is statistically less likely to happen.

        I won’t pretend to be an expert on the subject, but it seems like it’s mathematically possible to set some kind of threshold? If a set percent of users from an instance are all interacting microseconds from each other on one post locally, that ought to trigger a flag.

        Not all instances advertise their user counts accurately, but they’re nevertheless reflected through a NodeInfo endpoint.

        • CybranM@feddit.nu
          link
          fedilink
          English
          arrow-up
          16
          ·
          1 year ago

          Surely the bot server can just set up a random delay between upvotes to circumvent that sort of detection