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).
I'm not proposing a solution. I'm thinking about the problem for five minutes.
edit: Well, it didn't even take five minutes!
We need a reliable predictor of troll-nature. I mean, I'm not even sure that P( troll comment | at -3 ) is above, say, 0.25 - much less anywhere high enough to be comfortable with a -5 penalty.
Of course, I'd be comfortable with asserting that P( noise comment | at -3 ) is pretty high, like 0.6 or something. Still not high enough to justify a penalty, in my opinion, but high enough that I can see how another's opinion might be that it justifies a penalty. If that is the case, well, the discussion is being severely negatively impacted by conflating noise and trolling.
I might go and figure out how to get some data off of LessWrong commenting system, to try and determine a good indicator for troll-nature. (I don't plan to try and figure out noise-nature. That's the problem that the Internet has faced for the last 15 years, I'm not that hubristic.) That in turn would would put some numbers into this discussion. I don't know that arguing over how many genuine comments can be inadvertently caught in a filter is any better than arguing over whether there should be a filter at all, but to my mind it's more constructive.
Master, you have mediated on this for under five minutes, so I wish to ask two things: