Exactly. The phrase is wrong in every sense. You're pointing out the common case where something is free and offered in good faith (a terrifying and confusing c

Exactly. The phrase is wrong in every sense. You're pointing out the common case where something is free and offered in good faith (a terrifying and confusing concept for the Free Market faithful). There is also the exceedingly common case of both paying for something and being screwed by whoever sold it to you. Eg buying a Windows license and getting ads in the start menu. The real lesson is: look at incentives/motivations. Are you transacting with a group that has power to unilaterally determine terms and reason to weigh them in their favor? They will.