I thought so too, unless the item is really cheap. Or (like another poster suggested), it's to build up a reputation for the storefront. It could be that the s

I thought so too, unless the item is really cheap. Or (like another poster suggested), it's to build up a reputation for the storefront. It could be that the seller is simply paying some shady firm to improve their seller reputation. The shady salesman tells the store owner "Give me X dollars and I'll make sure you have a 99% 'good' rating". They take them money, buy a bunch of cheap junk and leave the fake reviews. The store owner may not even know they are fake.