After some success with #retroshare, I invited a couple friends to try it. We immediately discovered:
- it is amazingly unstable on linux, or at least the version of linux mint it was tested on.
- it isn't compatible with the highest tier of #calyxinstitute hotspots, which are inexplicably #ipv6-only. I'm not sure which is more wtf-worthy - retroshare is #ipv4-only, or an internet uplink that is ipv6-only.