Based on personal observation and experience I would have predicted that dislikes are based on things we've been forced to use, and legacy technologies that have been a PITA for us to support.

That fit well with the results. Windows is disliked by Unix people because it is something we're often forced to use by the business. (By contrast Windows developers are rarely forced to use Unix.) Older technologies are more disliked because developers are more likely to have had to support legacy products using those technologies.

But I would have missed the "enterprise technologies suck" issue if I hadn't read the article.