it will not work. hacks and exit scams have been happening since mt gox. there's always going to be fresh people who haven't learned to care yet. if the community relies on hacks to teach new people the hard way, there will be enough hacks to harm the reputation of the currency. instead, the cultural standards inside the community need to become more strict. excessive reliance on custodians should be looked down upon, like eating too much candy or watching too much porn.