GPL does not exclude a community of developers who need to earn a living to work. Linux, GCC and MySQL do not exclude people who are trying to earn a living from their sweat and toil. The GPL even says they can't impose any reason why people want to use the code whether it's in missile guidance systems, teledildonics, or ad networks.

>That being said, the free software purists aren’t a particularly tolerant community.

Sure the zealots of $BELIEF believe in $BELIEF and want others to do so as well. It's not a surprise.