Well, there are some improvements over existing systems (e.g. fiat money): 1. Less costs to switch to a competitor comparing to banks and states which leads to 2. The governance body and all influential members are really in need of public approval of their actions since that is exactly what makes a coin worthy. If they change protocol in a drastic way, the price will immediately plummet leaving them in tatters 3. Sa…
Point #1 is exactly not what you want. It means your currency can lose value almost instantly. Fiat currencies can do this, but only rarely actually do.