He's done the same thing for nearly everyone that's asked about something Google-related here. So yes, everyone on HN gets special treatment.
Answering people's individual questions doesn't scale to the entire Internet, so Google really has no choice but to address problems on a case-by-case basis. In this case, Matt reads HN and personally wants to solve the problem. That's the only way Google could possibly work, so that's how they do it.