Deflationary currencies works opposite to inflationary...
Yet the values of both are still driven by spending: one slowly looses its value as the money supply increases (i.e. more currency units in circulation), the other slowly gains its value as the money supply increases (i.e. more bitcoin base units in circulation; bitcoin base units are not to be confused with bitcoins currently, there are 100,000,000 base units per each bitcoin).
I know what it means but it seems you don't understand the difference they make. People need something to store value they earned and are tired about forcing them to drive economy. Humanity don't need such high consumption and waste of resources only because some smart asses want to have nice economy growth charts. Time to change whole system and the way people are thinking about what they really need.
Like i said, the best we can do is to simply offer more services for bitcoin. I'm working on new game i will be selling for bitcoin only (and i am paying for everything using bitcoin where possible). And guess what. I am going to HOARD them. Get over it.