[davorak]

Yeah this system does not appear to be the quick glance I looked, but api's disired system does not need to model this one.

api's requirements:

> How do we design a system that is anonymous and un-censorable where users can opt out of being relays for certain types of data?

As long as we are reasonable by taking "un-censorable" to mean very difficult to censor and "users can opt out of certain types of data" to mean highly limit traffic of data type <x>, it seems like a hard problem until proven impossible.