just sharing my thoughts on warranty matters as I frequently scout the B&S section for some lens and accessories.
many times i have come across sellers stating that they have the unfilled warranty and still state the item still have full waranty even though they bought the item many months ago
(which means that whoever the buyer is can register whenever they want and still get the full 12-15 months warranty)
i think this is a misconception as most companies now look at the official recipt and base the warranty on the date of purchase instead of the date written on the warranty card or online records.
either these sellers are trying to pull a fast one on unsuspecting buyers or they themselves are ignorant.