Even if we ignore the complex -- and I suspect fundamentally specious -- arguments about how debt repayment won't be inflationary.
Read the post he linked to. The bloggers that run that site hold fairly sane views on a number of topics, so give their arguments a chance instead of dismissing on grounds that they're inconsistent with your worldview.
And, by the way, there's nothing inflationary about the Treasury minting $20 trillion to repay its debt in its entirety and secure cash for its next couple of budgets. I admittedly haven't read the linked post's author's reasoning, which I'd wager offers a few insightful remarks; but I can offer you my own remarks.
Consider, for a moment, the useful clue that central banks (not just Bernanke; also the ECB, etc.) actually have printed a few trillions since 2007, and that the only material price increases we can speak of since then are in commodities and stock markets -- which is to say, wall street is blowing new bubbles with the free cash instead of loaning it. Why? One reason is that financial institutions are just as over leveraged and insolvent today as they were in 2007; in some cases even more so. The liabilities and bad loans were merely swept under the rug, waiting to bite us in the ass even harder when hell breaks loose. Another is that they've essentially nobody to loan money to in this economy, except themselves.
Whichever combination of reasons it actually is, the net effect is that the money isn't finding its way into the consumer's pocket, and the consumer's pocket is where official inflation is being measured. If we factored all asset prices into official inflation, we'd probably have been measuring deflation for the past few years. Instead, we mostly look at household expenses like grocery shopping, where money running around after goods has been more or less the same (you stop paying your mortgage before you stop eating), and we thus observe no material price increases except those related to gasoline prices -- which have a lot to do with peak oil and events in the Persian Gulf, and which weed into grocery prices in the form of truck deliveries.
It's tempting to dismiss the latter observation as specious, on grounds that price increases are a mere consequence of inflation, that inflation itself is an increase in the money supply, i.e. that what we're really seeing here is banks sitting on cash hoards instead of handing it over the the public, and shit will hit the fan the minute banks decide to leak some of it to the public.
And I agree... except for the fact that inflation is not an increase in the supply of money; it is an increase in the supply of money and credit. Fractional reserve banking helping, the key creators of money in our economy are financial institutions; not governments or central banks. (As an aside, delve into Steve Keen's research for sane views on how this actually works.) incidentally, the private sector as a whole is currently deleveraging, destroying credit faster than the Fed is willing to print money, and that is why hyperinflationists have been proven wrong again and again in the past few years.
In that light, I'd opine that minting $20 trillion into the economy would have absolutely zero effect if, at the same time, financial institutions are regulated in such a way that they're forced to deleverage by a similar amount. This could be as simple (and in fact, sane) as requiring banks to maintain reserves at 30% of deposits and denying them to count junk like AAA-rated mortgage backed securities as reserves. (And I'd actually suggest that such a move would force them to deleverage be a shit ton more than whatever the Treasury mints.) Anyway, my $0.02 worth.