ebay rating system is rigged by
ebay policies to make make more sales.
1. As a seller, you can't leave a negative feedback.
2. As a buyer, if you leave negative feedback, sellers can call
ebay to change it for any plausible reason.(sometimes, a lie) I think once negative feedback is left, all subsequent responses should be stated so that readers can decide who is at fault.
I'm sure there are more reasons, but I don't want to think about them. I want to enjoy my holidays!!