These challenges are interesting. The space for collaboration between journalism and tech seems to be really hot right now.

I can't help but think that with all the stuff that's been thought of and implemented in commenting systems like slashdot and reddit and hacker news, that we've plateaued out, and it's time to think of systems that don't involve direct mass communication between participants.

Hacker News works alright, but if you look at Slashdot there's just so much content for so little value.