Free software has been spectacularly successful at building significant parts of our current computing infrastructure: kernels, compilers, web servers, language

Free software has been spectacularly successful at building significant parts of our current computing infrastructure: kernels, compilers, web servers, languages and so on. Many of the products that the author would consider as having good usability are a thin layer built on top of millions of man-hours of open source stuff. So maybe free software is not that good at generating interfaces for the masses. So what? Many of the solutions that the author points out translate into boring work. Why would we expect people to do boring work for free? How could that model ever be sustainable?