The founders reward is extremely high, so high that the founders have a significant ability to manipulate the market. This is a concern in part because the foun

The founders reward is extremely high, so high that the founders have a significant ability to manipulate the market. This is a concern in part because the founders may be forced to do that - the actual implementation is with a single address, rotated periodically, which means that address is a single-point-of-failure for the whole currency in the sense that compromising it can be used to crash the price. Finally, 20% is high enough that it gives a significant advantage to 51% attackers.