> I would say his main argument is that you should not use closed source software.
His argument/s go beyond that and {wa,i}s actively hostile towards uses and interoperability if code, other libraries, systems, services, and users aren't pure enough. That was the progression from GPL2 -(TiVo)-> GPL3 -(Mandriva )-> AGPL with ever more extremism and less choice and usability.
There's no need for anyone to mirror his entire philosophy or much of it, but that some bits can be replaced by the choice of the user/developer without being forced by others into another walled garden (licensing tainting) that claims to be "free".
YMMV. Take with a grain of salt. Ask your doctor if licensing is right for you.
I would say his main argument is that you should not use closed source software.
I am not a cash poor college student, I share his philosophy, hence why I try to use Free Software when I have the choice.
Unlike Stallman, I am not a zealot.