do you have any evidence of this?
Restaurant tells everyone to leave bad ratings, because good ratings are hidden since they didn't pay extortion.
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https://www.reddit.com/r/food/comments/zdq0f/yelp_is_blackma...
Yelp "makes 4-5 star reviews go away" when restaurant refuses to pay extortion.
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http://www.cbsnews.com/news/inside-yelps-blackmail-lawsuit-c...
Stoppelman says that businesses want to control their reputation, and Yelp's position is to charge for that. Question here is, if money means hiding bad reviews, is that extortion? Sure seems so.
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https://www.forbes.com/sites/ericgoldman/2014/09/03/court-sa...
The courts said that "Pay to Play" isn't strictly extortion. And claims that Yelp themselves wrote bad reviews were unsubstantiated (no proof, server logs can be a 'tricksy' thing....).
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https://www.cnet.com/news/to-mock-yelp-restaurant-asks-custo...
This has gotten bad enough, that businesses are telling customers to seed YELP with good "Bad reviews".
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Seriously, when they call, and you fail to pay, your page on YELP goes to the toilet. How much "proof" do you need? There seems to be a misdirection by blaming 3rd party customers, but seriously. They're using blackmail as their market strategy.
...and that you have reason to dislike Yelp or even think they are hypocritical does not counteract the problem with Google, which is the topic at hand, making your comment seem like nothing more than a defense of vigilanteism :/.
I can have fault with both Google/Alphabet and Yelp. They each can have their own form of hypocrisy and potentially illegal behaviors. Me calling one out doesn't lessen the other's actions.