The reason why some Sellers don't leave feedback (this is just my opinion)... A. They are very rude, B. they don't consider their customers as important, C they view their customers with contempt. D. They are too full of themselves to consider it necessary to say a simple "thank you for your purchase"  Sick and tired of hearing the comments, like "buyers want brownie points" etc, ridiculous childish saying at the very least.  Buyers, simply want a "thank you" by way of feedback. I don't deal with these rude types more than once.  There are just too many nice and polite and considerate Sellers to have to bother dealing with the rude, up themselves types. Also, tired of hearing "feedback is optional" well so are manners, I guess!  Most people don't return when they are treated with contempt.