The only thing bitcoiners can do is to fight the hoarders as much as they can. Dont use MtGox and bitcoinica and send a message to the hoarders.
Fight the hoarders? Is the money I worked hard to earn, which I then put into the bitcoin economy in order to boost is value and get some bitcoin to hoard, not worth anything? Sure, I may not be working directly for bitcoin, but it's not as if I just pulled my hoarded bitcoin, or the money used to buy it with, right out of my ass.