Every political group attracts a few crackpots, but no group attracts as high a percentage of crackpots as groups with unpopular opinions. Outcasts are drawn to fringe groups — and fringe groups have little enough support that they don’t want to alienate any potential supporters.
I’ve been aware for a long time that libertarian and some conservative groups attract crazy people. Many times, these crazy people are highly intelligent, very weird and often obsessed with something strange. Those folks aren’t generally going to be accepted among the mainstream parties, because those groups have plenty of support and it’s easy to edge the weirdos out. But fringe groups accept the weirdos more readily.
And why not? One of the core libertarian beliefs is that people have the right to be whatever they want to be. If somebody’s life centers around promoting drinking colloidal silver to cure every ailment under the sun — or trying to communicate with aliens or researching conspiracies about how the Bilderbergers rule the world — hey, that’s his business, even if he’s nuts. As long as he agrees with us that other people have the right to believe and act as they choose, he’s welcome in the “liberty tent.”

Do you know your heart’s desire? Or are you just chasing a mirage?
Vile human cost of war ignored by Americans playing political games
Forces shaping America reward acting like angry sixth graders
My teen hijinks were silly fun, not alcohol-fueled drunken groping
If majority rule is such a great idea, why don’t we vote on toothpaste?
We’re becoming so selfish that our old ‘social scripts’ are dying
If abortion is just simple choice, why is killing babies for gender bad?
How can I share what’s obvious when nobody will listen or see?
Of all the world’s contradictions, our own actions confuse us most