Put people in imaginary boxes, exaggerate and attack things that aren't there. It's a classic approach.
From my point of view, the author's comments reveal the most:
"The fact that dollars lose value makes you spend or invest them. That is what drives economic activity"
I think a lot of Bitcoin enthusiasts got ahead of this old way of thinking. If depreciating dollars would drive activity, our economy would be booming for the last 30 years non-stop.
Good luck holding on to your dollars (and shaky ideas), Sir!
(Not going to read any article with "MySpace of money" in the title, but...) If the USD stopped inflating, the US would be completely fucked. Can you even imagine the implications of houses without that strong upward pressure on nominal value, and loans actually costing money? The housing market would tank from all the new underwater housing loans, setting off an economic shitstorm. The global economy would falter and possible enter a global depression for a decade or more. USG default would be unavoidable if the USD quickly moved from being inflationary to deflationary. We'd lose all that effective revenue from devaluing our national debt, so it'd probably be necessary to cut off the vast majority of welfare, and while it might be nice that the price of bread isn't increasing a few % each year, they won't be buying any bread with no job, decreasing equity in their house, and no welfare.
The USD isn't popular just because it's legal tender. Huge USD loans are practically free, often value-generating for consumers and businesses. A BTC-denom mortgage might sound cool, but it'd be a flat-out stupid choice by the lendee, and that's why I doubt BTC will ever successfully kick a fiat currency out of any country without an ideological uprising. Parents Against Inflationary Numismatics?
ETA: liberatarians love to talk about inflation and the national debt separately, but tend not to connect the two. Our national debt is right around $17t. In FY2012, we paid ~$360b on that. If we achieve 5% annual inflation, that $17t debt devalues by $850b. The USG would effectively generate $490b by having issued a shit-load of debt while inflating the currency and still maintaining confidence in that currency and the USG. The USG debt GENERATES REVENUE, and we make other countries pay for it. That's the most awesome Jew-fu out there.