Anecdotal, but I've been aware of this fake review industry for probably about 6 years and I am amazed that almost everyone I talk to does not believe the scale

Anecdotal, but I've been aware of this fake review industry for probably about 6 years and I am amazed that almost everyone I talk to does not believe the scale and the scope. They think there might be one or two fake reviews on an Amazon product when in reality it can be closer to 15 out of 18. Or in some cases every single one. People who are seriously doing this aren't paying $5 a review. They are paying $100-$500. At this point I just assume almost all reviews are fake. Especially on Amazon and to a slightly lesser extent Yelp.