[JoeAltmaier]

Reminds me of the definition of pornography: you know it when you see it. Or Plato's man: an upright biped without feathers. Somebody plucked a chicken and said "Plato's man!". So he added "with broad nails".

Any time you try to create a minimal taxonomy you get into games like this. No malicious intent by theoretical law professors need be imagined.