Comment by slopinthebag

That's an oversimplification. Demand-side deflation can be bad for the economy, but it's also because our modern economies are basically reliant on inflation to manage our insane debts. Typically, critique of inflationary principles is coupled with a broader critique of MMT and how our economies are run. Deflation is fine or even beneficial when it comes from increased productivity (supply-side). Heck, we have deflation in some sectors of our economy (eg. technology) and consumers greatly benefit from it. Unfortunately the good type of deflation we see in our economies is overshadowed by the money printer going brrrrrrr.

Deflation is bad for the elites and politicians, and good for consumers. When the former are running the show, of course they will claim that deflation is the worst thing ever, despite the immense harm inflation inflicts on the average person. And if you spend like 5 minutes pondering the justification for why that is, you'll see it's mostly BS.