Where are all the Libertarians?

[iron81]

Just cruising through the 2+2 Politics and Legislation forums, and the one other internet political site I frequent (Fark.com), I am struck by the number of self-professed Libertarians out there. There are definately more people identifying themselves as libertarian/ACist than identifying themselves as liberal or conservative. And yet, the Libertarian Party never gets more than 3% of the vote.

What's going on here? Is it just a matter of trying to seem cool by bucking the establishment? Is it a matter of libertarians not wanting to vote? Even if its the latter, you'd think the difference wouldn't be so dramatic that the major parties would get 20x as many votes as the Libertarian Party. I dunno. Just to be clear, I am talking about people who say in the forums "I am a libertarian" and those who don't self identify but use libertarian arguments.