I've loved this book since reading it, but it basically boils down to practices you can only use in applications no one is paying attention to (i.e. I slip calmer patterns into POCs all the time).
The nasty practices are used because they make money, and money pays the rent.
One day, maybe, humans will work out the kinks of socialism and calm tech alike.
Maybe Proof Of Cash is just a more honest synonym for Proof Of Stake.