It seems like a nice little battle is brewing between Jeff Atwood (of Coding Horror fame) and Matt Mullenweg (creator of WordPress).
Jeff has just posted an analysis of the WordPress CPU usage which he feels is unreasonably high and wonders why the WP-Cache has not been integrated into the core structure of WordPress itself. And I agree with his points. I have seen a number of instances where servers (and websites) running WP crumble upon being Dugg.
I am waiting for Matt’s response. Should be an interesting show 🙂