if ebay left  NPB sign when an unpaid item strike was recorded on a buyers account then sellers could not leave negative positives ...because the feedback space has already been filled

ASK YOURSELF TWO QUESTIONS

...... how would that FEEDBACK negatively impact on anybody but NON PAYERS??

....  would the MARK when left by ebay on a buyers feedback  "NPB'  positively impact on sellers by increasing aprticipation in the NPB strike system??

ie instil confidence