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The Voter Fraud script that runs overnight automatically removes votes from users who serially downvote another specific user. My idea is a simple one: extend this functionality to cross-voters.

We already have mechanisms to research sock puppets. But doing so is a complex, time-consuming and subjective process having many moving parts, often requiring a cauldron and extract of unicorn horns.

What I propose is much simpler and completely objective: Invalidate cross-votes between users that rise above some secret threshold, and are seen at the same group of IP addresses.

Example, for illustrative purposes only:

User A has 1500 rep, with 50% of their votes coming from User B having 25 rep, who casts 80% of their votes against User A. User A and B are always at the same IP address(es). User B is a clear sock. Votes are invalidated during the next nightly voter fraud script run.

The advantages of this approach are:

  1. The rules are applied equally to everyone
  2. The rules don't care who the participants are; the script will work whether it is a sock or a coworker.
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Does this just invite the cheaters to generate a larger clique with which to run their scam? – dmckee Mar 26 '12 at 17:10
@dmckee: Perhaps. But it adds more friction; the user has to create more socks, and the threshold could be lowered for accounts coming from the same group of IP's. – Robert Harvey Mar 26 '12 at 17:13
Adding more friction is the key. – cdeszaq Mar 26 '12 at 17:16
throws a pile of socks at Robert - You'll never find me now! – animuson Mar 26 '12 at 18:24
Related, I think: Robert's Limit the maximum percentage of upvotes an account can cast against a single user which however did not propose a secret limit. – Arjan Mar 26 '12 at 20:41
@animuson so that's where my missing socks went :p – Manishearth Mar 27 '12 at 16:58
This sounds familiar... I likes. – Won't Mar 27 '12 at 18:17

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