It's not being pedantic, it's crucial to the problem of Bitcoin. If I'm trying to live outside of government meddling, and yet I'm spending in dollars, then I may as well keep my savings in monopoly money. Why? Because converting to dollars (outside of a guy handing you cash in a shady park) requires a bank account, which in turn requires government involvement--and that's exactly the problem the OP is trying to avoid.
You think keeping Bitcoins prevents the government from seizing your assets? Well if you trade in dollars, then they don't HAVE to seize your Bitcoin assets. They can just stop you from converting to dollars, and effectively achieve the same result. All the Bitcoins in the world are worthless if you trade in dollars and can't convert Bitcoins to dollars. And if you think MtGox is going to stand up for you when the government comes knocking on their door and demands they stop honoring withdraw requests for your account, then you're wrong.
Bitcoins are cool, they're useful today, and they have potential. But until you can buy a sack of flour from the corner store with Bitcoins, they're not an effective way of evading government meddling. They're just a proxy currency for people who don't understand better.