Do you know what his blog infrastructure is? Over 3 hours later its still not working. Git is decentralized and can and does scale. Builds can be spread across multiple machines on EC2.
Once my blog posts started reaching hacker news I thought "Oh, I'll just move site out of the apartment and into the cloud!" and bought an account at prgmr.com (which I highly recommend, by the way).
However, I serve WordPress via Apache on a 256 MB VM, which clearly thrashes under load.
Tonight I will purchase an upgrade to 512 MB of RAM and play with nginx.
I'm sorry for the inconvenience.
p.s. I do have WP-Supercache enabled and a PHP bytecode cache. I _could_ just host at wordpress.com, but I might as well learn nginx while I'm at it...