Joe Carter feels that libertarian thinkers misuse the conservative label:
Libertarians recognize that making “The Libertarian Case for Libertarian Idea Du Jour” is not going to generate much interest. So they make the slight semantic shift under the assumption that most people will be fooled or intrigued enough to give them a hearing. ... My all-time favorite example is Andrew Sullivan’s “The Conservative Case for Gay Marriage.” His justification for radically redefining one of the oldest institutions in human history is that it will help homosexuals connect sex with love and commitment. (Seriously, that’s his argument.) Whether that reason is good or bad, justifiable or indefensible is debatable. That there is nothing particularly conservative about it is indisputable.