Because it seems to most people dont bother to leave a review unless there is a problem!
I am after a summerhouse, have some money in the bank and am looking around. The problem is that no matter where I look, the vast majority of reviews are negative. If I took them all on face value then I would never ever get one! I had the same problem when I was buying my new carpet from a very reputable manufacturer and reseller, 90% of the reviews were negative.
As it is, I have no idea where to go, at least with the carpet I knew what I was looking at, but not with Summerhouses!
AIBU to think that only pissed off people leave reviews?