The system I proposed wasn't for lesswrong. It was for the hypothetical place where no argument can be left unanswered.

You don't like teams I get it. Feel free to suggest a system that encourages people to counter all points they don't agree with, with the following properties

1) Doesn't create too much noise

2) Allows people to see all current open points that they may be interested in countering, i.e. serves the equivalent purpose of replies in lesswrong, but also allows people to see other peoples relevant orphaned arguments.

3) Doesn't require too much time.