Very interesting point....yes, I have given very justifiable negatives to very unreasonable sellers (in my opinion anyway), but only like 2 or 3 but a couple years ago. I would never give negative feedback for little disagreements and ALWAYS try to work things out first based on promises made by the seller, etc. and then they don't follow through. I myself have all positive and no negative or neutrals. So I guess I made myself a target of investigation when I asked the seller a couple of innocent questions about the item. I just asked some general questions with a 'please' and a 'thank you', nothing at all that was offensive. So he must have used that to check if I had ever given negatives or something. Who knows? That very well may be the way he blocks buyers: checking their feedback of negatives against others...having said that, I'm off to check the other bidders of that particular auction to see if they have left negatives for others...stay tuned...