Several people posted recently in a thread on women, mostly espousing feminist views - only to find that someone had declined to respond to their post, but instead browsed their history and downvoted every single comment or article they had ever posted.
I have two questions:
1. Why would you come to a site like this and pollute the karma system? How does it make you smarter? How does it make anyone else on the site smarter?
2. What would be a good technical workaround? In my mind, some system that detects mass-downvoting and flags a user for review would be preferable, but what should happen then? Should the system be more lenient to higher-karma posters? Who should perform the review process? What should be done with those whom the reviewer ascertains are abusing the karma system? I would prefer some kind of lesson that is more corrective than retributive - it seems to me that people who would perform this behavior are exactly the sort of people who need some of the lessons that this site provides. Any ideas?
I would argue that when you do this, you owe it to the person you are downvoting to explain WHY you believe they are systematically wrong. A series of downvotes + one helpful comment is far preferable to a simple series of downvotes, even if it costs you karma to do so. As an example:
my response to an apparent troll comment on Brain Preservation
See, just smacking someone without telling them WHY you're smacking them leaves them to all sorts of conjecture as to what happened - if whomever had downvoted 30+ of my posts had left a single comment explaining why, I could have learned from it. As it is, I have no evidence to distinguish retribution from legitimate correction, and no data with which to correct myself even if it IS an attempt at legitimate correction.
Actually, thinking on this further, a series of downvotes plus an immediate comment explaining why is EXACTLY the right behavior - the sudden plunge in karma will get the user's attention, which they can then direct to the reply - the combination of mild social shaming, "score penalizing" and corrective explanation is a quite powerful way to drive home a lesson.