I definitely share this experience, for instance in many of the recent "Groupon is a scam" threads, or anything having to do with Android. It becomes a disincentive to participate in conversations about certain topics. I think one thing that might help, and that often spurs relatively useless chains of comments, is to clarify exactly when a post should be downvoted. I think some people use downvoting to express disag…
I definitely share this experience, for instance in many of the recent "Groupon is a scam" threads, or anything having to do with Android. It becomes a disincentive to participate in conversations about certain topics. I find that the worst area of discussion is intellectual property law.
IP discussions are a veritable oasis of circumspection compared to "Macbook Pro gets new battery" threads.