William,
I believe that feedback is important to most buyers. I usually check to see how many negatives sellers have, if too many, no bids. When in doubt about any statements I always attempt to contact the seller if time permits. If no answer, no bids.

When I do not have the knowledge of what I am selling. I always state that it is "my belief" or "I am not certain" about the item. I try before listing to get the necessary information to properly describe the item, but this is not always practical or possible.

The chip below is available for trade/sale....sold out in 7.983 minutes....Just kidding!!!!