&gt; <i>Half the time the fakes are so ludicrously easy to spot that I really wonder why they bother.</i><p>They only need to be slightly difficult for a robot to flag as a fake. Most people will just sort products by a combination of price-and-rating, and buy the top-rated thing in their budget; it doesn&#x27;t matter if the 5-star reviews are all Markov-chain generated garbage, all users see are the stars.