The difference is that U.S. monetary policy seeks to create a low, predictable, consistent level of inflation. This allows everyone to incorporate it into their long-term financial plans.
> seeks to create a low, predictable, consistent level of inflation
Too bad seeking isn't reality, and too bad it isn't low and isn't consistent. Unless, of course, you alter the metric that measures inflation as the U.S. has done periodically.
It's harder to plan for surprise 10% haircuts.