There's a couple key issues with it: current comment voting techniques don't do a good job of differentiating validity from user sentiment (how many times have

There's a couple key issues with it: current comment voting techniques don't do a good job of differentiating validity from user sentiment (how many times have you had someone need to rebuke the community for using the arrows to denote disagreement?) Secondly, you will always to deal with trolls. If you have mechanisms in place to make people spend less time responding to trolls, you'll retain the sanity of the sane users and diminish incentives from trolls. Thirdly, you have to rethink the way stories are voted on. Thankfully, we're building that. If you sign up on forrus.org, I'll let you know when we roll these features out which should be in a month. We're actively just inviting people who are enthusiastic about these ideas because we want to grow the community slowly but with lots of quality.