That is pretty impressive. I believe it was for the book about Mike Pence's bunny, but if so Amazon deleted the troll comments- but anyway people not only gave it tons of 1 star reviews, but rated trolling 5 star reviews as the "most helpful"- things like "Haha, no the book's terrible. I just wanted to disappoint anybody looking for a good review".
CotW is a method for ranking cards in increasing order of printability.
*"To YMTC it up" means to design cards that have value mostly from a design perspective. i.e. you would put them in a case under glass in your living room and visitors could remark upon the wonderful design principles, with nobody ever worring if the cards are annoying/pointless/confusing in actual play
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