From Andrew Wheeler’s “Antick Musings”:

A friend of mine is fond of saying “everything’s worse with libertarians” — it’s cruel and reductive, and definitely not true universally. But there’s a certain kind of libertarian, particularly here on the Internet, who does make everything worse. (There are similar Troskyites, too, but libertarians infest the Net the way roaches do a dirty kitchen, scurrying out of all corners at the slightest attractive morsel.) They shove everything into a few pre-defined rhetorical boxes, and then spread their hands as if they’ve proved something — and they’re at their very worst when it comes to extreme situations and lifeboat rules.

I have never before seen so succinct a summary of online libertarian debating tactics.