I really appreciated his work on setting up governance for Node (in addition to his work on request and other stuff as other people have mentioned). It is probably largely forgotten now, but at the time it seemed like a big risk to Node being able to move forward technically and generally. I remember that the day Joyent agreed to let go of Node, he posted somewhere about celebrating at a bar in Oakland, where I lived at the time, but I was tired and didn't feel like being social so didn't attend, which I have always regretted since it would have been great to meet him in person and celebrate the victory.