Have you really never seen any software saying "for non-commercial use only"?

When I'm paying for said software? No, I don't think I have.

	▲	zombot an hour ago \| parent [-]
		The Home/Personal edition of Mathematica is for non-commercial use only although it's a paid subscription. The world around you is not bound by your ignorance.

wat10000 12 hours ago | parent | prev [-]

Only when it's a free/cheap consumer version of something with a pricey business version.