You can troll libertarianism in the following ways:

• Suggest that you like the Libertarian Party.
• Agree with any form of taxation.
• Make up elaborate lies about how government interference is directly correlated with general happiness and coke supply, forcing them to do actual work to prove you wrong.
• Propose a law to ban stupid people from breeding and see how many "freedom-lovers" actually agree with you.
• Create a thread titled "DATING TIPS," pretend to be an athletic, attractive, emotionally-sensitive Libertarian with good job security, post a sob-story about not being able to get a girlfriend and watch it grow to over 9000 pages about the naïveté of women and how Libertarians are better lovers.
• Tell them the Internet was invented by the government.
• Be a minority.
• Tell them Ron Paul is a racist and is supported by the KKK.
• Ask them to name a single Libertarian community that worked in the real-world.
• Mention government or 'socialistic' successes and private sector endeavors failures.
• Praise the Labor Theory of Value.
• Argue over libertarianism vs. anarchism.
• Say FDR and Abraham Lincoln were the best US presidents.
• Point out the fact libertarianism is just a type of conservatism
• Ask them why they hate the 16th amendment when they claim to love the Constitution
• Spout conspiracy theories about how Ayn Rand was a soviet double agent or how Thomas Jefferson was trolling when he wrote the declaration of independence. This should actually be pretty easy, as libertarians are known to take to conspiracies faster than MCR to a cock.
• Tell them that Ben Franklin used state money to fund a hospital.
• Tell them you're voting for Bob Barr.