[benvanderbeek]

Amazon review fraud is rampant, and with enough effort, they'll do something about it. I've worked w/teams there who, over time, develop very complex queries on the back end, and use these to remove sellers who violate policy. There are all kinds of additional tricks sellers or manufacturers use to make their reviews look legit, such as using Amazon gift cards to prevent tracing back to a specific credit card holder, and to ensure the "Verified Amazon Purchase" indicator shows on the review. Helpful votes are crucial and there seem to be very complex rules behind which votes get counted and which don't. Some combination of accounts being related via credit card on file, IP address, possibly length of user account history, etc. One difficulty for Amazon is that their community review policing department is disconnected from their seller performance team. My company's work with them has improved the communication, as well as the realization that user accounts that leave fraudulent reviews cannot be treated as merely rogue buyer community members, but rather have to be tied back to sellers and manufacturers who are the real benefactors of these fraudulent (positive or negative) reviews.

We've come a long way from manufacturers blatantly paying people for positive reviews. http://www.thedailybackground.com/2009/01/16/exclusive-belki...