Ordering small items from China is problematic if your item is dead on arrival, shipping them back costs as much as the unit. Also, I ordered multiples of an item and some were not in the package, those aren't so difficult to file against. However, our postal service is terrible here, I got a nice package of jewelry from a neighbors ebay order in my mail box and I am sure it showed delivered, when it wasn't.... I had to take it over to the lady myself. What if this happens with my own package? What if a scammer mails an empty box to some address in my own city and then the package also shows delivered?
How did I know what was in her package? I opened it! I was expecting something and didn't even look at the address label, after all, it was in my mail box.... Now I know to look first.
I might as well add another ebay problem, I ordered some 100 dollar flashlights cheap for 50 each! What a deal! Then a package came with a rubber balloon in it from China.... I filed against it and left appropriate feed back, then I saw in the FB where another buyer got the same thing, a rubber balloon. Ebay did refund my money, even with the delivery showing it was delivered. I assume, because I have over 1000 ebay buys without many complaints as well as the other individual who reported the same problem. The seller said it was an employee who stole the flashlights instead of delivering them and to cover his tracks, sent balloons with tracking so he could then come back and show they were mailed, later quitting. True? I don't know, but he lost his ebay account, probably a lot of people were screwed. The fact the flashlights were half of normal cut rate price kinda tells me there is more to the story too.
Another time, I ordered an iphone from a seller who had a ebay name like banker, or something like that.... It never came and I waited a month to get my refund. From what I could tell, this guy was floating money from people, getting a thousand bucks, someone filing against it, sending the money back all the while doing the same to someone else.... juggling the money, as long as you keep the scheme going, I suppose you can have a lot of cash, until ebay catches on... or just do this to a one or two when you need money in a hurry... refund two weeks later. I am sure this goes on.