I see you replied again so I think I should respond, though initially I wasn't going to. (And note that I can't downvote your comment, since it's a reply to mine, so I'm not the one draining your karma.) With that preamble finished:
Perhaps your comment is getting downvoted because your premise seems incorrect? When I first saw your reply, I thought, "Hey! That's not fair! Just because I explained what people do doesn't mean that I excused what they do." I was being descriptive, not prescriptive. In other words, I thought your reply was pretty unfair, but I was not going to reply because I felt like it was just splitting hairs.
Now that you're getting downvoted and have replied a second time, I just thought I'd point out that others may have felt the same way about your comment as I did. Indeed, the very same people who are downvoting your comment very well may not agree with the behavior that my comment described as being typical.