I'm still not seeing a difference, possibly because we haven't agreed on the terminology.
a) Here's my definition of "inflation" (inflationary money) in this context: A currency similar to today's fiat, where more money is constantly released into circulation. Bitcoin also meets this definition and will continue to meet it until all 21 million coins are mined.
b) "Inflation" is also used to describe rising prices of goods, when the gallon of milk which cost 1 dollar on Monday costs 2 dollars on Tuesday. This is also a correct definition, but has only a circumstantial link to "inflationary money" -- it can happen with a deflationary currency as well. So NOT the one i mean in this thread.
Can we agree which definition we're using & is there a way to highlight the essential difference between an inflationary economy & one where demurrage money is used? (a real question)
No economist (not even Von Misess) would agree with your A definition as Inflation, your just describing growth in Money Supply, where as even the most hard core Austrian would define Inflation as a growth in money supply IN EXCESS of the DEMAND FOR MONEY. I know that lots of BTC people CALL growth in Money Supply Inflation but it is not, when I say Inflation I mean your B definition.
But in any case if a growing money supply is something you dislike then you should like FRC because our money supply reaches it's cap in only 3 years (2 left to go), not some absurd 100 years in the future when we are all going to be long dead. We can do this because we don't have to wean miners off of new coins and onto a full dependence on transaction fees, the demurrage recycling provides a ongoing revenue stream.
We could still have gone for some absurd 100 years of money supply growth, but we wanted to actually be the first and ONLY coin to reach a stable money supply. It is an experiment and no one has any idea if Crypto-currency can actually survive without a growing money supply or what kind of effects it has on the economy and valuation so one way or the other we will provide a data point on that question.
Personally I don't think a flat money supply will work (deflation will result and interest rates will not fall to 0% which is our ultimate goal) so I am glad to have an experiment that can uphold or refute this position within my lifetime and in time to guide the future of crypto-currency while it is still in it's infancy.