For users reared on GUI-oriented commercial operating systems, switching to open source POSIX-type OSes can be an onerous task. Whereas Linux, and FOSS in general, are built around the ideas of inclusion and sharing, the communities built up around the open source operating systems often face accusations of exclusive techno-elitism.
CLI Linux "Gurus"
"Linux Gurus" That U Should Avoid
What Could Be Worse Than A Noob?
Macs and ISO9660 Level 3