I will glance through a review on anything if I am interested in the product. As a contractor, I used to buy a lot of tools, so a review could provide pertinent information like how long a warranty was valid, what size bits or blades were used in the machine, how much power it needed to work properly, etc. Kind of an at a glance type thing to get some bulk information. I quit relying on magazines and large websites for quality review information.
I started reading reviews like this one (obviously a parody) for a new circular saw: "So in closing, if you want a lightweight saw that can't cut a straight line, has no power, and is louder than a small jet engine, this saw could be just the tool for you!"
Or in my gun mags: "I didn't expect much from this pistol so I wasn't disappointed in its performance. It didn't shoot well, it jammed quite a bit, and the magazine fell out after a few rounds. But if you are happy with a poor performer that falls squarely in the medium price category, this gun could be just what the doctor ordered."
The reviews sounded like they were churned out by the same guys no matter what the product was. While I still take them with a grain of salt, online reviews prove to me to be much more helpful. I read more reviews on Amazon when I am purchasing electronics than anywhere else.
Gotta stay away from the fanboys, though. They think if you get a lemon that is a product of their favorite manufacturer, it is your fault. If you post a bad comment (never, ever post a bad review of some of knives so well loved here) you will get creamed. I can't imagine the screaming and teeth gnashing of someone posted a full review (not just a comment) on certain knives they found to be lacking. On this site, it would be extremely difficult to get an honest review on about 4-5 different knife brands if it were negative. I think that keeps the honesty factor down a lot as a lot of folks just don't want to be torn to pieces for their opinion.
Robert