In a sense, inflation is good because it forces people to spend. If people spend, commerce thrives, and the economy moves. There is no point keeping something when it rots over time. That's how fiat is. It's like a perishable food.
Second, inflation is good for those who borrow money. As money is losing value over time, what you borrow today is much more valuable than what you will pay in the future.
I'm not saying inflation is good. And it seems that the tide is turning as far as appreciating inflation is concerned. There seems to be a paradigm shift and Bitcoin has probably played a vital role.