Oh goody... "Last Call!!!" :-)
Don't misunderstand, please... I'm not denying the terminology, nor its accuracy. I'll even use it myself: Most money in the world can be called "fiat money". OK... of course it is.
And yes... there can be disastrous monetary policy that can happen. So? A bigger disaster would be shackling the price of a dollar to some amount of metal.
I can name example after example of unlimited fiat money / easy credit systems collapsing in utter ruin, often leading to violent revolution, dictatorship, starvation etc.
Against that, I would posit the American 19th Century, when we tamed a continent, crisscrossed it with railroads, built a world beating industrial base and so on.
Yes, it was far from perfect, but it never collapsed into ruin, riot, revolution and dictatorship. Just look at American progress across that century!
And it did so all while "shackled to metal."