My honest question is: If you pull shenanigans like this, isn't it actually making Amazon burn through said imaginary money, thus hastening its demise? The cost of delivering a potato has to be on the order of at least a couple dollars.
E.g. an Amazon van rolls through my street multiple times a day. What is the marginal cost of them stopping at my house and dropping off a potato?
At my house, it's a 140 mile round trip between the fulfillment center ("are you feeling fulfilled yet?") and the drop off location.
OTOH, there's likely more of "you" than there are of "me" ...
While Amazon is efficient, "fractions of a cent" is probably the wrong order of magnitude for even the most efficient order.
I can almost guarantee that everyone mentioned in that blog post is a habitual Amazon user. They're all renewing Prime each year at full price and making a ton of regular purchases. The family has even turned on the FOMO by making Prime a family social network with social pressure to stay. I see it as a self-own, personally.
Edit: I'm taking part of this to the root of the thread