Anyone know who started this parody?

I'm surprised this didn't originate from the Onion. It's pretty amusing, really. Sounds like something they'd do on South Park - poke fun at everyone.
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"Nature has constituted utility to man the standard and test of virtue. Men living in different countries, under different circumstances, different habits and regimens, may have different utilities; the same act, therefore, may be useful and consequently virtuous in one country which is injurious and vicious in another differently circumstanced" - Thomas Jefferson, moral relativist