You should not have to plan for inflation, is the point. Of course you can.. it just makes it harder for normal people to retire, a major penalty. Inflation literally means people have to work months, possibly years longer just to retire, all so the government can deflate its own absurd debt. Fuck that.
Nope, I just live in the real world, and have seen what inflation does, experiencing it everyday.People that save in currency are not using it for the intended purpose. If you want to use something that it's not designed for, you should have a penalty. There's no way to achieve 0 inflation and 0 deflation. Between the two, inflation is much better for anyone that's not rich as fuck. You have no idea what is reasonable because you are ignorant.
We need people to save, so they can invest real capital, not credit, into things, businesses, jobs, or just buying more expensive things. When someone saves, they will eventually spend that money usually, even if only when they retire. There's nothing wrong with that, and it's not "against it's intended use".