The problem is that it is a nonsense if you read it
it is *not* a nonsense if you are reading this in the sense of buying
Wikipedia content (which is a common sense of, for example, "buy
Wikipedia"; cf. "buy Linux"). At least, Google should exclude
Wikipedia from its common commercial add ons: "buy Wikipedia", "trade
Wikipedia" and similar. Anyone who wants to make money on
Wikipedia(tm) should pay for (tm) at least in USA.
Is anyone making money of it? Do you have to pay to be on the "Buy
XYZ" results? And do any of the results actually sell anything to do
with Wikipedia, or look like they do?