I am not supporting of the idea deflation, it is bad for economy, people talk about deflation as if it is a good thing, Inflation is good but the rate just need to be relative to the rate of growth of the economy and also people talk about Bitcoin as if it is a deflated coin NO, BTC has inflation it is just that people understand the issuance rate and it is factor into the price that is why we see these fluctuation in prices over time.
Inflation like in fiat is not a good thing. Anything controlling inflation is a positive thing. See the pioneer of crypto i.e.BTC it has controlled inflation but with time its getting popularity. Same with deflation tokens, they may go up in price with time.