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.”

I don’t understand YouTube fame, but I’m drawn toward it anyway
‘War is the health of the state’ — but the death of the people who serve it
I’m paralyzed by fear my choices won’t match needs of future wife
I can force child to obey me, but obedience comes with high cost
Those Libyan ‘freedom fighters’ we paid for? They’re murdering thugs
Past feels like blurry watercolor, not like the history of real people
Free tires for a stranger? We forget all the people doing good
Zimmerman verdict is correct, but there’s no cause for celebration
Who ‘owns’ children? And who should step in when parents fail?