First of all, unlike what many people are saying here, I thought the piece was very well done, insightful, and balanced. Thank you Jake for the piece, and thanks you Jonathan for running it. Whether you use Ubuntu or not, UDS is an important conference (doubly important this time with the presence of Linaro people there) and LWN is right in covering it.
On the topic of contributor agreements, as a long time sceptic of contributor agreements, this was the first time that I began to understand Mark's vision and where he is going.
If free software projects generally own their own code base, and design a business plan to generate revenue around it and become self sufficient, this could strengthen the whole free software ecosystem. Unfortunately for Mark, I don't think this will happen.
Shuttleworth has poured his resources and years of his life contributing to the community. Even if you are not an Ubuntu user and have never benefitted from a Canonical-developed technology, I doubt that his creation of Canonical and Ubuntu have hurt anyone, so I find the level of antagonism and hostility by some community members towards him, baffling.