"Digital Currency Poll: Should Money Be a Pure Medium of Exchange?"

As I understand it (as pretty much a complete layperson with a high school level of economics but a programming degree), currency having a large value as a speculative investment is a terrible thing. This is what happens with deflation. If you know your money is going to be worth more next month, next week, tomorrow, you're going to hold off spending as much as you can. Businesses will make less money, and will cut spending and staff, leading to people spending less in a nasty cycle. This is why a little bit of inflation is generally considered a good thing.