The fake review industry is getting bigger and more pervasive:
I use https://reviewmeta.com/ for Amazon reviews.
I use https://www.fakespot.com/ for Amazon, Walmart, and possibly others.
Those websites analyze customer reviews in different ways to give you an idea of how fake the reviews are.
i never read positive reviews, it is the negatives i read carefully,. i never felt an urge to go on a website and leave a positive review of a product, i never left a negative either, but i did want to few times, i know amazon would refund money of some products when you leave a positive review, seller promotion i guess.
I’m only looking for product details in the reviews, and don’t trust any reviewer that only says great things.
There is a LOT of review manipulation going on at Amazon. My wife got an email the other day offering a full refund AND a gift if she deleted her negative review. That’s AMAZON. They aren’t even supposed to know her private email, but they got it somehow so they could operate outside the Amazon messaging system.
It’s well known that Amazon, eBay and other sites are full of fake reviews. Insiders with the company review their own productlms and the companiesalso pay or compensate others to publish positive reviews (5 stars). I ran into this with Amazon looking for screen protectors for my tablet. SO many products with hundreds and thousands of 5 star reviews seemed odd. Put two and two together…
I pay attention to the negative reviews as well as they seem more truthful.
I have been around amazon and ebay for a long time; the amount of people approaching me for paid reviews is simply astonishing. There is an email / message every week, therefore I wouldn’t pay too much attention to the reviews published there.
another great example:
I will source out as many reviews on a product before I purchase an item as I can, sometimes taking months if its a high dollar item like my first compound bow. I kind of like reading them. I never trust when I see nothing but 100% positive reviews on a product without negative reviews unless I know the product like the Samsung 21700 cell or an item I have purchased multiple times in the past. I find the negative reviews are where I make my decision on new products I have never tried. I read all the reviews here on BLF and the comments if I am interested in a flashlight from members that have been here a while, great stuff 
HKJ is the man when it comes to what cells I’m going to buy, Thanks HKJ 
The only place I purchase auto parts anymore is Rock Auto unless I have to have it that day then its the dealership or Napa. When I first started buying flashlights a few years back I was reading reviews on how amazing the light I was looking at only to find out the reviewers had no clue and I wound up with a POS and quite a few as well 
. I then searched for online flashlight reviews and I found the Holly Grail BLF! and now I have to many great flashlights Online shopping for a new hobby or interest can be frustrating with the endless amounts of information, flashlights. 11,500,000 results!!
He seems to have been a prolific reviewer of flashlights, among much else, if Google’s “verbatim” search tool is accurate.
https://www.google.com/search?tbm=isch&q="Justin+Fryer"+Amazon+flashlight+reviews