Creating a comment limit would, theoretically, reduce the DH0-DH3 responses. Let's examine this.<p>Let us assume that X gets n units of utility for every point of karma the community awards.<p>Let us further assume that the community only awards points of karma for insightful posts/comments. This appears to be a safe assumption.<p>If X knew that comments/posts were scarce, which under your proposal they would be, then X will attempt to maximize the karma earned from each comment/post by maximizing the insightful nature of each comment/post.<p>In a way, karma whoring would actually curtail garbage comments/posts, if comments/posts were a scarce resource.