I've had this on ebay in the past. Sellers begging for feedback (PLEASE leave me feedback as I have done for you type messages) before the item has even shipped never mind arrived. One time the item arrived after 2 of these emails and was broken, so the seller got it with both barrels
I think the only thing that annoys me more is "we saw you on our wesbite, do you still want to buy these items" type emails, with the obvious answer being "if I wanted them I would have bought them but someone else is cheaper"
Biting the hand that feeds IT
