From the only reliable source of news on the net, the Onion. Being in favor of freedom to express opinions that you hate is easy. Being in favor of the free expression of babble that you find deeply annoying, aye, there is the rub!
As an example, how many of you have been on the receiving end of this type of endless monologue recently?
Voltaire observed in a letter of February 6, 1770: “Monsieur l’abbé, I detest what you write, but I would give my life to make it possible for you to continue to write.” I rather doubt that he meant that, as Voltaire was a physical coward as well as being a congenital liar. However, I think we can all agree that freedom of speech even for the most annoying and boring is a good thing, so long as we can avoid being within ear shot of them!