I haven't really noticed this trend. But keep in mind, I'm just one data point. To give a rough estimate, I'd say that for every 20 or so down-voted comments I

I haven't really noticed this trend. But keep in mind, I'm just one data point. To give a rough estimate, I'd say that for every 20 or so down-voted comments I come across, there is one whose lack of points is actually confusing to me. I find that most of the down-voted comments tend to contain at least one (or a combination of) a number of things, including being off topic, using immature language, presenting opinions as facts without anything to back them up, being hostile, etc. It is because of these observations that I haven't gotten the impression that there is a trend towards down-voting solely due to disagreement. I believe it does happen, but not as much as some say.