We are taking such a bold stance because identifying products sold using Super URLs is very easy. Technically speaking, it is probably one of the easiest ways for Amazon to identify sellers who are manipulating the system. To get a bit technical, the &qid parameter in the URL is a time stamp showing that a search for the given keyword was performed. Certainly, Amazon maintains a database of each timestamp and search performed on the site. All they need to do is find sales that occurred for searches that never took place.