A working link, for I ~think~ the same piece: https://www.defcon.org/images/defcon-21/dc-21-presentations/...

I just looked at a few slides but it looks like the transcript of this awesome talk at defcon: https://www.youtube.com/watch?v=l5JBMyxvuH8

The big wow was that a lot of people seem to use those complicated and extreme ways of messaging.

Pretty interesting, this research showcases the power of what can be done with just the metadata.

Good work. And yes, another failed experiment.

But there is another alternative, for hardcore enthusiasts. One can use Mixmaster nyms via Tor, using nymserver and newsserver hidden services.