Although fake positive reviews are surely much more common, I'd also keep a skeptical eye on the negative reviews, especially if the product is politically cont

Although fake positive reviews are surely much more common, I'd also keep a skeptical eye on the negative reviews, especially if the product is politically controversial. A couple years ago, there was a book critical of Internet service in the US and how it lags behind countries with more public funding. It received hundreds of obviously scripted 1-star reviews like "I am a [blue collar profession] in [middle American state], and I appreciate how great my Internet service is. The US is bigger than [smallish European state]. The author is [ad hominem], etc." Someone posted it to Reddit, and then it got a bunch of fake 5-star reviews as well.