What am I proposing? A trial run of Reflect on Slashdot on a couple posts, integrated into the Slashcode platform. I already have a working Reflect plugin for Slashcode, demonstrated on this site with source available at this github page.
What is Reflect? Reflect is a simple change to online comment boards that encourages readers to restate the points that a commenter is saying. Next to every comment, a bulleted list of restatements is shown, along with a button inviting anyone else to add their own. The original commenter is able to state whether a summary accurately represents what they were trying to say.
Why would you use it? Help encourage listening online, help avoid flamewars arising out of misunderstandings, help commenters learn about how people are interpreting what they are saying, provide a new way for people to interact...See the pitch for Slashdot.
Why am I proposing it? We're researchers, we learn things from people using what we build!
More information. The Reflect website has further description, including a screencast and links to example Reflect implementations. Also see the Reflect entry for the Mozilla Journalism project.