[joesmo]

Walmart has no problems with them. What you're essentially saying (I think) is that generic online retailers cannot handle the amount of returns they need to to stay in business so they need to get rid of customers to stay profitable. Seems spot on to me.

[raisedbyninjas]

Walmart is a retailer that does this. https://liquidations.walmart.com I don't know if they work on tracking returns by user, but they take a decent loss on returns. Without anonymous cash purchasers, it's easy for Amazon to filter out abusers.

[CydeWeys]

Retail stores do prohibit returns for people that abuse the returns process. You've never had a retail store ask for your driver's license to process a return? They're doing it to enter your information into their system, to determine if it's abuse.