Who doesn’t understand open source, and why?

Root.cz has published a translation of what I consider a more than debatable
article, How Microsoft’s Misunderstanding of Open Source Hurts Us All.
Robert X. Cringely’s take is one-sided, and measuring Microsoft only against Linux as a representative of open source is inadequate.

Open source has an economic dimension at its core, and Linux is the most visible example.
Microsoft understands open source very well, of course. What bothers it is less Linux itself than
the transparency of these solutions, which is what open source is all about. I recommend reading
the discussion on the article.
Some of the views there are genuinely interesting.