I didn't hear that one but I am a fan of Sklansky. And I also have a very vivid memory of learning the word, when I first heard the song Turn Around by They Might Be Giants. The connection with the song burned it into my memory.
There's no such thing as a free lunch, regardless of how you distribute the costs. If a seller is refunding the cost of shipping on returns, they are passing that cost on to you in some other way (higher prices, membership fees, etc).
You could make the argument that if you return items more often than the average customer, your share of those costs may be getting subsidized by the customers who return items less often. But if you return items less often, you're probably worse off.
This is great to see. Some feedback: I entered the exact name of a doctor I knew would be in the database, formatted as "firstName lastName". The result was buried under 20 other less relevant matches. I had to search as "lastName, firstName", for it to come back as the first result.