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Re:TrustDavis: A Non-Exploitable Online Reputation System [pdf] by bmelton on Sunday February 01, 2015 @11:32PM (#8982734)
Also, one has to assume, it's easily exploitable by those for which the deposit is not an obstacle... e.g., the rich, and also those making money off of their scams.

Totally worthwhile to pay a $5,000 if it means I can successfully defraud someone for > $5,000 to cover it. If I can time the frauds well enough, I can defraud a number of people with my "good" reputation, then just abandon it.

Re:TrustDavis: A Non-Exploitable Online Reputation System [pdf] by kwikiel on Monday February 02, 2015 @02:59AM (#8983165)
The whole point is that system will be stable and secure if cost to fraud X amount of money will be higher than X. Otherwise there will be always a way to scam people - just waiting to be discovered.