Clearly, reviews on the site are getting out of hand. Amazon has finally cracked down on the "incentivized reviews" which are all over the site.
Personally, I have become numb to some of the reviews, and it's quite obvious that a good number have been incentivized, or just fake, in some way or another.
Today, we updated the community guidelines to prohibit incentivized reviews unless they are facilitated through the Amazon Vine program. Amazon Prohibits Incentivized Reviews [amazon.com]