No offense, but that answer was wrong in every respect. There's a law that allows the Treasury to mint platinum coins of any denomination. It only mentions platinum.
It wouldn't print the way out of the debt crisis. It's just an accounting trick that also wouldn't cause inflation.
None taken, I only know the little I have read about it in the papers. Though I am not sure how you can increase the money supply by a trillion dollars and not see any inflation. While the coin may never go into circulation it would be on the books and spent as if it was otherwise there would be no point.