I bought a footmuff on Ebay, which arrived clearly unwashed - covered in long hair, short hair (looking suspiciously like dog hair) and grass. I'm certainly no perfectionist, but I gave it straight to a charity shop. It looked like it had been used to line a dog basket!
Admittedly it wasn't very expensive, but on principle wouldn't you wash something if selling it?
I haven't left any feedback yet - and I don't really want to leave negative feedback as it arrived in reasonable time.
Am I being a bit precious? Feel free to tell me if I am!