As a reformed libertarian (9/11 made the difference for me) I think this guy's analysis is totally correct.
If you think this guy's analysis (which is filled with micharacterizations about libertarianism) is correct, then I really have to doubt you were ever a true libertarian in the first place...
Oh yeah, that really makes a lot of sense. Here's your theory - anyone who deserts the libertarians is by definition off his rocker and therefore, could not have ever been a libertarian in the first place since libertarians are always perfectly sane.