Why Free Software is hard to use, and how to improve it, by Matthew Paul Thomas. (The other Matt Thomas who used to be involved with WordPress.)
Why Features Don’t Matter Anymore. I think similar things when I hear “But CMS X has hundreds more features than Y! Why don’t we have more users?”
Game-like elicitation methods: A new approach to user research. I like the sound of this and it looks like Mindcanvas is using WordPress to power their entire site.