In future, a truly anonymous coin/currency will be invaluable to offshore tax havens... I'm talking the wealthiest of the wealthiest in the world who want to be able to store their wealth but also do it in a way that is untraceable by governments or unbeknownst to hackers/criminals
The coin is PERFECT for darknet markets but has not been fully adopted yet due to some limitations in features, however the features will be coming live soon so will see greater adoption over time through this (multi-sig).