This is great, but another thing they really need to do is create and enforce two more rules:
1) Lister must provide all dimensions of actual product (not just packaging)
2) Photographs must show product as actual sized, not photoshopped into a stock photo environment at 3x scale
Especially for home items, it's astonishing the number of items that just provide NO WAY to know what the size is.
It seems like such an easy first step to reducing returns. I wouldn't have to return it if the page did a better job describing the item in the first place.