My past experiences when I worked with a telephone repair company and we shipped all over the US (and received from all over too).
When items are received from FedEx and UPS and the boxes appear to rather destroyed...
Make note of the destroyed box with the driver immediately. After opening, keep all the original packaging. If item inside is destroyed, sometimes it is not the vendor's fault but it is UPS or FedEx. You can file a claim with them.
If the inside packaging is inadequate, you will have to go after the vendor. UPS & FedEx will not stand by a box that is smashed if there is not enough packaging that will help support the sides of the box.
Of the items that I have received from Ebay and other Halloween vendors, I have noticed that the packaging is extremely inadequate. Now most items can withstand being tossled and bounced around but not all.
When I was buying ebay items and needed to leave feedback, I would note that it needed more packaging. Don't know if they noticed, but I still left it.
Peanuts are lightweight and doesn't add to the shipping price. Does add cost to the shipper though, but I've seen in some cases they are more than covered on shipping costs.
Two bits - hope this helps someone.
Sandy