The seller has a positive feedback percentage of only 90%, which looks bad in theory.
But then you look at their feedback page and see they've only received ten pieces of feedback in the past year, one of which is negative, hence 90% positive out of ten feedbacks. They're clearly a personal seller selling their household odds and ends, they have an overall feedback score of a few hundred with years of positive buying and selling history.
Would you be put off buying from that person?