I’m not sure whether this is a cautionary tale about data manipulation or about concentration of economic power but I’m pretty sure about the cautionary part.

Good reporting from the Verge:

Dirty dealing in the $175 billion Amazon Marketplace by Josh Dzieza

Last August, Zac Plansky woke to find that the rifle scopes he was selling on Amazon had received 16 five-star reviews overnight. Usually, that would be a good thing, but the reviews were strange. The scope would normally get a single review a day, and many of these referred to a different scope, as if they’d been cut and pasted from elsewhere. “I didn’t know what was going on, whether it was a glitch or whether somebody was trying to mess with us,” Plansky says.

As a precaution, he reported the reviews to Amazon. Most of them vanished days later — problem solved — and Plansky reimmersed himself in the work of running a six-employee, multimillion-dollar weapons accessory business on Amazon. Then, two weeks later, the trap sprang. “You have manipulated product reviews on our site,” an email from Amazon read. “This is against our policies. As a result, you may no longer sell on Amazon.com, and your listings have been removed from our site.”

A rival had framed Plansky for buying five-star reviews, a high crime in the world of Amazon. The funds in his account were immediately frozen, and his listings were shut down. Getting his store back would take him on a surreal weeks-long journey through Amazon’s bureaucracy, one that began with the click of a button at the bottom of his suspension message that read “appeal decision.”

When you buy something on Amazon, the odds are, you aren’t buying it from Amazon at all. Plansky is one of 6 million sellers on Amazon Marketplace, the company’s third-party platform. They are largely hidden from customers, but behind any item for sale, there could be dozens of sellers, all competing for your click. This year, Marketplace sales were almost double those of Amazon retail itself, according to Marketplace Pulse, making the seller platform alone the largest e-commerce business in the US.

For sellers, Amazon is a quasi-state. They rely on its infrastructure — its warehouses, shipping network, financial systems, and portal to millions of customers — and pay taxes in the form of fees. They also live in terror of its rules, which often change and are harshly enforced. A cryptic email like the one Plansky received can send a seller’s business into bankruptcy, with few avenues for appeal.

Sellers are more worried about a case being opened on Amazon than in actual court, says Dave Bryant, an Amazon seller and blogger. Amazon’s judgment is swifter and less predictable, and now that the company controls nearly half of the online retail market in the US, its rulings can instantly determine the success or failure of your business, he says. “Amazon is the judge, the jury, and the executioner.”