If you have showdead set to "yes" in your settings, you'll see a lot more spam like this. You also get to see comments that add to discussion but were downvoted to oblivion because people don't like certain things being questioned.
It wasn't dead when I replied. I know this, I show dead since I often find my comments to be flagged or killed since I have some unpopular opinions. Just watch the my history and view the sea of down votes I've collected. ;)