Everyone's talking about goods being so worthless that suppliers don't want them back, but the answer seems different to me: blatant abuse of return policies must necessarily be so small in proportion to real sales that seriously fighting it just isn't worth anyone's time.

Similarly, really pursuing shoplifters who are dealing in the hundreds of dollars of physical goods just isn't worth it -- because a seemingly high enough number of customers aren't malicious and do pay the bill with no hassle.

It must be so if a 1-5 cent margins can translate to enough sales to cover writing off the merchandise grifters want to get a hold of as well as torching the stuff that slips past QA.