This is a quote from the book "The Gentleperson's Guide To Forum Spies" by Cryptome.org
...br /> Technique #2 - 'CONSENSUS CRACKING'
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A second highly effective technique (which you can see in operation all the time at www.abovetopsecret.com) is 'consensus cracking.' To dev
elop a consensus crack, the following technique is used. Under the guise of a fake account a posting is made which looks legitimate and is towards the truth is made - but the critical point is t
hat it has a VERY WEAK PREMISE without substantive proof to back the posting. Once this is done then under alternative fake accounts a very strong position in your favour is slowly introduced ov...