Here's a riddle for the Anonymizer:

It's inevitable that an alias system would be developed for any successful cryptocurrency.  The alias system would de-anonymize transactions of even the most perfect system because...that's what it's designed to do by voluntary compliance.  But, governments would then mandate all transactions be routed through the alias system or you're considered to be a criminal launderer.  So it seems no matter what type of cryptocurrency you develop, you will be forced to use the government scaffolding alias system regardless, which transforms the cryptocurrency into an entirely different thing than what it's designed as.

Which is how we arrive at:

https://www.youtube.com/watch?v=9JgvkWRSq7Q&feature=youtu.be&t=47m33s