Comment by bitwize

Getting good UX requires professional designers, extensive human testing, and knowledge of human psychology—things historically in short supply among the OSS geek set. In the 1980s Apple ran a human factors lab that spent thousands of hours determining which interface features were the easiest to use and most efficient for many common computing tasks. This is why classic Mac OS is still the gold standard for UX. Even Mac OS X started making compromises to accommodate techie trends, rather than keeping the focus on the average user.

Because much proprietary software has garbo UX, that doesn't make the OSS UX situation not garbo.