this post was submitted on 09 Jul 2023
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Fediverse

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PSA: Lemmy votes can be manipulated (feddit.nl)
submitted 1 year ago by [email protected] to c/[email protected]
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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.

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[–] [email protected] 28 points 1 year ago (2 children)

It actually seems like an interesting problem to solve. Instance runners have the sql database with all the voting record, finding manipulative instances seems a bit like a machine learning problem to me

[–] [email protected] 9 points 1 year ago

There's an XKCD for that: https://xkcd.com/810/

[–] Schmedes 1 points 1 year ago

Don't really need machine learning, just well built queries. Probably peak at the top pairs of users that comment on the same posts. If the same users are always commenting/voting on each other's posts across every subreddit, it points to manipulation.