I came upon this site today.
If you're buying a product online, you might find this site helpful when evaluating a product based on buyer reviews.
Fakespot | Analyze and identify fake reviews
I was online shopping for a hand held knife sharpener and was surprised that fakespot detected 79% of the reviews were faked! Another knife sharpener was analyzed as having only 7% fake reviews and therefore was deemed trustworthy.
The site even shows the remarks by suspected fake reviewers and you can tell they are by how vaguely they word their review.
The way they word their review could refer to any product ever made and are probably automated.