It is the first thing I check when deciding whether to buy from a seller or not and I always read comments, specially negative and neutral ones. More often than not, they are just daft or ignorant! I like to be left positive feedback from buyers when the transaction is complete and they are satisfied, then I leave feedback for them. That makes sense to me. It does get on my nevers when a seller/buyer with hundreds of feeback has left all of 2 for others! Even though feeback is voluntary, it's just common decency to reciprocate!