Cool, but late. There are tens of similar accounts active right now, and they are only banned after repeatedly and continously stepping over the line. Most of those accounts don't participate in good faith from day 1, but it takes 60-90 days for them to get banned. I don't know what to do about it, but it's a problem on HN for quite some time.
As an outside observer: mynameisvlad is right, and even provided a better variation of your comment _which you requested_. To me this is an OK criticism, I'd like to see more of this on HN. Then you've thrown everythign in the trash, essentially, and started digging through their comment history. Their comment wasn't even under discussion. I'd like to see less of this on HN.