Earlier quoted context omitted.
I think the problem is that down votes have more potential for abuse than to increase the efficiency of sorting. A factual error, corrected is just as valuable as any other average comment in my opinion. Perhaps they should be pushed down, but then you have people who will down vote to suppress opposing ideas and unpopular ones. By only allowing up votes, it becomes much harder for people to manipulate any single com…
While upvoting better comments is a really good thing, I don't think it's enough. Let's say that instead of trying to give a counter example for your idea, I simply write something like: "No - that's lame and you should be downvoted, because you're wrong right now." If that was the last response - everything's fine - the thread gets lost. But if someone tries to explain that I'm not correct, we get a standard war tha…
I think in this case simply flag it if it seems trollish. Or only allow down votes on responses. Because allowing down votes on all comments introduces a whole new set of problems like majority induced silencing.