Open Letter to eBay: Your policies protect criminals, and you profit from it
willslabblog.blogspot.com
willslabblog.blogspot.com
It's the same on Amazon: They treat the third-party sellers like garbage and allow scams to continue. If you go through the Amazon seller forums, you can see many stories about sellers that were scammed, then banned, and ignored.
You should never rely on either of these companies for your business (as a seller). It's just too risky.