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Why the usual checks fail

Reviews can be bought

A wall of five-star reviews feels like many strangers vouching for a seller, but reviews can be bought, written by insiders or quietly filtered, and research on Amazon found that bought reviews lift ratings only until the buying stops. The US now bans fake reviews outright, and India has a standard for how platforms should collect and check them. A review is worth something when it is tied to a real purchase by a real person you could trace.
A hand in a dark suit sleeve pointing at a row of five drawn stars, one filled in yellow
Photo: geralt on Pixabay

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Why reviews feel safe

Reviews are social proof in its most persuasive form: not just a crowd, but a crowd that seems to have bought the thing and come back to tell you how it went. When you cannot hold the product or meet the seller, that feels like the next best thing.

Ratings also pull later ratings along. In a randomised experiment on a social news site, adding an early positive rating made later positive ratings 32% more likely, and final ratings ended up 25% higher on average. A handful of planted reviews do not just sit there. They recruit real ones.

What a rating shows, and what it does not

What it shows

  • How many reviews a listing has collected
  • The average of whatever was published
  • Sometimes, that the reviewer bought through that platform

What it does not show

  • Whether reviewers were paid, given free stock or refunded
  • Whether bad reviews were removed or discouraged
  • Whether reviewers are the seller's staff or friends
  • Whether a testimonial screenshot came from a buyer at all

There is a market for reviews

Economists Sherry He, Brett Hollenbeck and Davide Proserpio studied sellers who bought Amazon reviews in large private groups on Facebook and other sites. Buying reviews raised average ratings and sales rank, but the lift faded after about a month. When sellers stopped buying, their ratings fell and the share of one-star reviews rose, which suggests fake reviews were mostly propping up worse products.

Regulators have caught up. The FTC's rule on consumer reviews and testimonials, in force in the US since 21 October 2024, bans fake reviews including AI-generated ones, paying for reviews that say a particular thing, undisclosed reviews by insiders, company-run review sites posing as independent, and threats to get bad reviews removed. Courts can impose civil penalties for knowing violations.

In India, the Department of Consumer Affairs launched IS 19000:2022, a Bureau of Indian Standards framework for collecting, moderating and publishing online consumer reviews, on 21 November 2022. It applies to every platform that publishes consumer reviews and sets out ways to verify a reviewer, such as email, phone or SMS. It began as voluntary; the government said that once it is made mandatory, violations may be treated as unfair trade practices.

Both sets of rules cover businesses and platforms. Nothing moderates the testimonials a stranger pastes into your chat.

Who it fails, and how

Big platforms at least try to filter reviews. The harder case is the seller who has no platform: an Instagram page, a WhatsApp catalogue, a Facebook group listing. Their reviews are whatever they choose to show you, often screenshots with names cropped out.

Example. Names and numbers are made up.

Twenty perfect screenshots and no way to reach a single buyer is not twenty references. It is one source, the seller, speaking twenty times. Our guide to fake payment screenshots shows the same problem with money.

What makes a review worth trusting

We think a review earns trust in proportion to how hard it would be to fake. That comes down to two ties: to a real transaction, and to a real person who could be found and asked.

  • Tied to a purchase the platform recorded, not just posted by anyone.
  • From reviewers with their own history, not accounts that exist only to praise this seller.
  • Specific: what arrived, how long it took, what went wrong and how it was fixed.
  • Mixed. A real seller collects some three-star reviews, and how they answer them tells you more than the five-star ones.
  • Best of all, from someone you know who bought from them, or a buyer you can contact yourself.

Questions

Is a verified purchase badge proof a review is real?
It is a better signal, because it ties the review to a transaction. It raises the cost of faking without ending it: the Amazon research above shows sellers still buying reviews on one of the biggest platforms there is.
Are AI-written reviews illegal?
In the US, the FTC rule covers fake reviews that misrepresent who wrote them or their experience, and the FTC says that includes AI-generated ones. India's IS 19000:2022 standard started as voluntary for platforms.
Isn't 4.8 stars from thousands of reviews safe enough?
Volume is harder to fake than a handful, so it does count for something. Still read the recent and the low reviews; a rating can be propped up for a while, then fall.

Realr rests on the same idea as a good review: trust tied to a real person. Someone proves who they are once, and you can ask to see that before you pay.

Ask before you pay

Sources

Checked against the sources above on 17 October 2026. By Manav Sharma, Marketing Team, Realr. This is general guidance, not legal advice.

Ask them to prove who they are, before you pay or meet.

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