ebay sellers better wise up and post tracking numbers on everything they sell, I do.
Say, that you were a buyer and you were somewhat less than honest, you get your package of circuit boards but the seller was lazy and never answered your emails pleading with him to send you a tracking number.
Now, in your anger, even though the boards all test just fine, you decide to complain to Ebay after a couple weeks that you never got your stuff.
Because the seller neglected to post tracking info, Ebay will believe your story and refund your money and the seller gets burned.
So, sellers beware, always spend a little more for tracking and always post the info, its your only recourse for dishonest buyers...
I have read stories about douchebags bragging online how they take advantage of this loophole to get free stuff, HOPING that the seller wont post tracking info so they can get their shit for free..