I disagree that there is a disproportionate number of crazy ultra-libertarian members of the Bitcoin community and it seems more likely that the more fringe members of the community are also the most vocal and they tend to drown out the more reasonable and level headed members of the community.
Well, if you say "crazy ultra libertarian", it's hard to quibble, but if you say "more libertarian than Rand Paul or Ron Paul", I think that would be more accurate.