The recent implementation of a -5 karma penalty for replying to comments that are at -3 or below has clearly met with some disagreement and controversy. See http://lesswrong.com/r/discussion/lw/eb9/meta_karma_for_last_30_days/7aon . However, at the same time, it seems that Eliezer's observation that trolling and related problems have over time gotten worse here may be correct. It may be that this an inevitable consequence of growth, but it may be that it can be handled or reduced with some solution or set of solutions. I'm starting this discussion thread for people to propose possible solutions. To minimize anchoring bias and related problems, I'm not going to include my ideas in this header but in a comment below. People should think about the problem before reading proposed solutions (again to minimize anchoring issues).
If the problem is with spam in the 'recent comments' sidebar, then it seems like we should change fix that. I would be on board with a rule that posts in hidden sub-threads don't show up on the 'recent comments' sidebar. If we can remove posts from the sidebar, then perhaps posts that drop to -3 are removed from the 'recent comments' sidebar as well.
Bump. ;-)