Amazon has a problem with fake reviews and it seems they are ok with it. I bought a replacement screen from Amazon and it wasn’t working properly. I thought I did something wrong so I contacted the seller/manufacturer and they told: oh yeah, it‘s defective, we‘ll just give you your money back. I agreed and then the person said „cool, now in order to process your request, please click these buttons on Amazon” and they…
As an economics grad, I always wondered why online reviews existed at all. There's no skin in the game for anyone. If your neighbor recommends you a crap lawnmower, he'll have to explain to you why he thought it was good. You can ask him questions and compare his motivations to yours. He'll also end up living next to a badly mowed lawn if he doesn't put some work into it. The seller has every reason to pay people to…
This perhaps explains the rest of your comment :-) Often in economic theory it's assumed that people are totally rational, and often rationality is assumed to include sociopathic levels of self interest. Daniel Kahneman, the author of Thinking Fast and Slow, uses the word "econ" to describe the mythical creature that statisfies these properties. He makes the point that most people are not econs to some lesser or greater extent (either because they don't fully act in their own self interest or otherwise don't act fully "rationally" in the economic theory sense).
I often leave online reviews because I feel it's the right thing to do, even if I personally don't benefit from them. In part, I feel like they're payment for reviews others have left which I've used, even though an econ wouldn't bother because those other reviews would exist regardless of my "payment".
I do get your point towards the end of your comment that it's easy enough to come up with fake reviews, either by paying some econ-ish people or just using a machine. I'm talking more about the earlier point about recommendation from your neighbour only being reliable because of the consequences of a poor review.