I am looking forward to this and I really hope alignment gets implemented in some meaningful way. Spending a soul coin is a morally questionable act.
You can also siphon energy from a soul coin to heal yourself -- slowly destroying the soul inside -- which is an evil act. Hope is is tracked in some way.
Ah, actually, fully consuming the energy of a soul coin directly, either by asking it questions, taking its energy yourself, or shattering the coin, are ALL considered *Good* acts. However you expend the charge on a soul coin, the soul is ultimately freed - only burning them in infernal engines destroys the souls.