I'm still not happy about his whole, "Qt isn't OSS so I'm writing GNOME to compete with KDE" move back in the late '90s. Though I appreciate Ximian, I fail to see why he's even relevant these days.
I was a HUGE Linux fanboi in the late '90s through about 2010. I agree with him, however, that Linux just doesn't work as a day-to-day end-user platform anymore. As it is, I'm mostly using my Nexus tablet and Galaxy phone for tasks, and then resort to Wintendo when I need.