Bragging is the wrong word, but it is the first that came to mind. And I was excited to brag about the size of my app when I first read his article.

I just think we spend too much time talking about scaling and not enough time discussing virality.

Scalability stories are generally interesting, as they're about solving problems that out-of-the-box commercial software doesn't. They're interesting to hackers, not all of whom are entrepreneurs.

If you'd like to share a story, however, on using statistical techniques to measure and act on virality, doing multi-variate testing, et al that would be very interesting.