Kantian Nihilism and Caligulan Propriety

People who get their intellectual history from blogs like this sometimes use the phrase "Kantian Nihilism" as a shorthand for leftie commie pinko traitor sex drugs and rock and roll ideology. Ayn Rand liked it (apparently she was even dimmer than I'd thought).

The term triggers a full scale rant from Obsidian Wing's Hilzoy -- with this memorable sentence ...

Obsidian Wings: My Head, She Explodes!

... Since truth is one but error is infinite, there's no shortage of further subjects for Chris Muir's strips: Leninist anarchism, Kierkegaardian rationalism, Thomist atheism, Nazi Judaism, cautious and sober Maoism, Britney Spearsian profundity, Caligulan propriety and decency, Robespierrian restraint, Mozartian lugubriousness, and of course Muirian thoughtful, well-informed commentary.

Update 7/23: There's more later ...