He thought it was a good idea to (publicly) oppose those who have a monopoly on violence. Whether one disagrees with him on that or not, he should have been better prepared for what he was doing. There are ways he could have easily protected his coins.
He failed to protect himself and those who trusted him. You can't blame the FBI for being the FBI any more than you can blame a bear for shitting in the woods.
By parity of reasoning, you cannot blame Mao, Stalin or Hitler for genocide. It was just in their nature.
Precisely. Only after you understand someone's nature are you able to properly prepare yourself for whatever it is they may do.
http://en.wikipedia.org/wiki/The_Scorpion_and_the_Frog