Reviews are divided into simple and complex: complex are all the sites that we hear about and where it is difficult to pass moderation, all the others are called simple. To leave a review on, for example, Yandex maps, you need to attract a real potential buyer who will actually come, for example, to your store, take a photo and post a review. Yes, of course, he will be engaged, but nevertheless, it will be the opinion of a real person. With reviews on simple sites, everything is easier, it's enough just to register there and leave, not even a review, but just an advertising message about your business.
Reputation management is a set of measures that includes stimulating real feedback from customers on the site and removing negative, false, reviews left by competitors and mazuriki.