Re 1: So why again are we wasting an entire country worth of electricity to secure some numbers? Because we haven't found a good replacement yet doesn't cut it. It's like saying why am I dumping dioxin in the rain gutters? Oh, well, I haven't figured out a better plan so back off, socialist :P

Re 2-3: Tell that to customers of Quadriga and MtGox and the countless scammed, those who paid ransom to kidnappers. Everyone who lost their keys. It's a problem, let's face some reality here.