Yeah, one of the things cryptocurrency supporters often claim is that the coin pools were generally designed to be fixed size and "deflationary" as a goal (at least from certain points of view), but deflation as a goal is just as bad as inflation as a goal. Too much deflation tends to spiral [1] and there are plenty of examples of real world economies in history torn apart by deflation.

I don't know what an equitable monetary policy would be, but I know that intentionally deflationary currencies look nothing like it.

[1] https://www.investopedia.com/terms/d/deflationary-spiral.asp