Here’s the backstory
The study found that these products climbed the ranks via review merging. This is a process used by legitimate sellers for related products they are selling under different listings, such as those that come in different colors. Review merging is not allowed for unrelated products, but that’s what’s happening here. Bad actors use this method to inflate a product’s review score by hijacking reviews from other listings.
A big problem
Poor or robotic spelling and grammar errors are red flags. Keep an eye out for examples of review merging. Look for descriptions that don’t fit the product.Look for a high number of glowing reviews for a product submitted within a short time. If several reviews closely match each other, they were likely written by bots. Generic and vague reviews are also warning signs.
You can go a step further and take action against fake reviews:
