Discourse.net recently broke the 2.5 million page views mark via Sitemeter. I don't happen to think Sitemeter is a very reliable index (it both over and under counts actual readership, and doesn't count RSS readers, increasingly the majority, at all). Still, it counts something, and whatever that is, 2.5 million seems an awfully big number.
Thank you, whoever you are. (And please feel free to tell me who you are, if you've got a moment.)