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Re:A False Economy Powered by Ads and Lies by gwd on Wednesday February 26, 2020 @11:10AM (#22424240)
How about this:

1. Have a way for buyers to report when a seller is bribing them to fake reviews. If the report turns out to be genuine, give the buyer a small reward ($5/10).

2. Have Amazon occasionally pretend to bribe people to do fake reviews. If a user does the fake review, their account is banned for one month. If the user reports the fake review, they get the small reward.

Between the carrot of reporting fake reviews, and the stick of being banned for falling for the request, you'd "crowdsource" a lot of the issues.

Re:A False Economy Powered by Ads and Lies by elsewhen on Wednesday February 26, 2020 @11:18AM (#22424325)
“If the report turns out to be genuine”

This still requires the platform to detect _genuine_ transgressions which is very difficult.

Re:A False Economy Powered by Ads and Lies by gwd on Wednesday February 26, 2020 @11:33AM (#22424489)
> This still requires the platform to detect _genuine_ transgressions which is very difficult.

I had in mind situations where a seller contacts a buyer who has left a negative review, and offers free merchandise for changing the review. If it happens within Amazon's system, they should be able to verify it.

Obviously an attack you have to defend against is unscrupulous seller E posting fake review requests on Facebook (or wherever) "on behalf of" honest seller A, causing Amazon to ban / punish A in the rankings.

Re:A False Economy Powered by Ads and Lies by WalterSear on Wednesday February 26, 2020 @05:07PM (#22427891)
It also requires that the incentive for Amazon to go after fake reviews to be greater than their benefit from them plus the effort involved.
Re:A False Economy Powered by Ads and Lies by ljp_206 on Wednesday February 26, 2020 @11:46AM (#22424660)
I'm no business expert, but I'd wager any "stick" method that bans consumer accounts is not going to be popular with boardroom types.