I think the forum-like discussion zone is a great idea.
I voted for the grace period, because the Karma coward feature would mess up the current system and encourage constant Karma cowardice on shorter, less substantial comments. In regards to the grace period I think that it would be wiser to set a comment counter instead of a time interval because a heavy posting trollish person would potentially cause annoyance even in the case of a short period. “Doing nothing” follows the grace period very closely in my preference as I feel the current karma system is satisfactory.
I think the forum-like discussion zone is a great idea.
I voted for the grace period, because the Karma coward feature would mess up the current system and encourage constant Karma cowardice on shorter, less substantial comments. In regards to the grace period I think that it would be wiser to set a comment counter instead of a time interval because a heavy posting trollish person would potentially cause annoyance even in the case of a short period. “Doing nothing” follows the grace period very closely in my preference as I feel the current karma system is satisfactory.