I _am_ on topic, we are discussing air pollution, and most people I talk to around here are mistakenly under the impression that SF is this paragon of air quality, so mine is a pretty high entropy post sharing an interesting and not commonly known fact that often surprises people.

Meanwhile, you're attaching unfounded emotion to my post through projection (I've been sitting here the whole time with a perfectly chillaxed and even slightly amused attitude); my post has had a non-negative score its entire lifetime -- only one person downvoted it (you?), so I'm more inclined to believe that somebody else that is not me is the problem here.