there are two positions one can take on the issue of intellectual property, either you believe in it or you don't. either information is a material resource that can be governed and owned, or information is an immaterial resource that cannot be governed nor owned.
you can't criticize software vendors for restricting access to their source code and invoking intellectual property law to sue people who copy it, and then turn around and invent a copyleft license so you can do the exact same thing. you can't copy the source code from unix and emacs and violate their license to write unauthorized clones and then lock those clones behind your own license to stop others from doing whatever they want with "your" code.
words are not things and language is a means, not an end. the significance of a legal document is not in the text itself but in how the text is interpreted and enforced in a court of law. permissive licenses such as the bsd license can effectively be thought of public domain licenses because they contain no enforceable non-trivial restrictions that could conceivably ever warrant an actual court case, but copyleft licenses like the gpl can and have been involved in real courtroom cases and any civil litigation in any courtroom requires a specific plaintiff, and it cannot be "the people" as in a criminal case filed by the state. the plaintiffs in gpl violation cases are typically non-profit organizations like the free software foundation or the software freedom law center who act as legal representatives for one or more of the developers, and which developers get to be constituents and potential beneficiaries in the lawsuit is decided entirely at the discretion of whomever happens to be in the room when the lawsuit is first filed.
to illustrate the real-world ramifications of this, consider the busybox lawsuits filed against various companies by busybox developers erick anderson and rob landley represented by the software freedom law center. the cases were settled for undisclosed sums and these two developers got paid off, but none of the other hundreds of contributors to the busybox project, including the original authors bruce perens and dave cinege, were represented or given a share of the settlement or even contacted by the plaintiffs. so in practice, enforcement of the gpl does not really represent the open source community and all the contributors to a particular project, it only represents the tiny fraction of contribut
Post too long. Click here to view the full text.