But the ban, sellers and experts say, merely pushed an activity that used to take place openly into dispersed and harder-to-track online communities.
There, an economy of paid reviews has flourished. Merchants pledge to drop reimbursements into a reviewer’s PayPal account within minutes of posting comments for items such as kitchen knives, rain ponchos or shower caddies, often sweetening the deal with a $5 commission or a $10 Amazon gift card.
“We know that millions of customers make informed buying decisions everyday using Customer Reviews,” an Amazon spokeswoman, Angie Newman, said in a statement. “We take this responsibility very seriously and defend the integrity of reviews by taking aggressive action to protect customers from dishonest parties who are abusing the reviews system. . . . We take forceful action against both reviewers and sellers by suppressing reviews that violate our guidelines and suspend, ban or pursue legal action against these bad actors.”