When you pull your crypto driven system out of the light, you are going to have to fight what lives in the dark. If you screwed up the protocol of your system and it's taken over, well it's gone, you exist outside the law and there are no means to get it back. Do a bunch of trolls with stolen crypto generation means exist on your network and flood out all the legitimate users, well too bad.
Civil society exists between the authoritarians that want dominion over everything and those that embrace chaos and would leave the world in ruin. It is a delicate and imperfect balance, but where it exists allows humanity to flourish.