Linux isn't a truly free and open kernel. Linus has accepted binary blobs into the code. RMS doesn't consider it to be truly free and open.

Well after being with Ubuntu since 8.04 I left. I moved (eventually) to Sabayon KDE - WOW, I mean, WOW! I now have control, real control, GUI and command line - equo/rigo is king, long live the king. Gnome 3, Unity - Hah!