If Liebertarians are going to run in elections, they are going to have to get used to having signatures challenged and everything else that comes with running, the same way EVERYONE else does. It happens all the time, nothing new. Myself, I flirted with becoming a Libertarian until I learned of their "what me worry" stance on abortion, borders, and foreign policy. Their links with the ACLU did not help either. Our local Pittsburgh LP chapter (leaders at the time were Terry McIntyre and Dan Sullivan, treasurer Rich Loether in case you don't believe me) joined the ACLU in an anti cop march in Pittsburgh and supported a class action lawsuit against the Pittsburgh Police (which later was dismissed by a judge).
The Chairman of the Illinois Libertarian Party saw Bush's petition for the 2004 election. It had exactly the minimum number of signatures required, which I believe was 5000. Suppose he had mounted a challenge to that petition. Do you think he couldn't have found even one bogus signature?