During the GPLv3 drafting process, we joked that GPLv2 became perfect only once GPLv3 was published. I have to agree. I've been dealing with these issues since

During the GPLv3 drafting process, we joked that GPLv2 became perfect only once GPLv3 was published. I have to agree. I've been dealing with these issues since 1997 or so for companies big and small, and the gpl keeps things...interesting. Its funny ,one of the reasons we mostly release using the permissive licenses (apache 2 and sometimes bsd and mit) is that they are both usable by both commerical and gpl'd software but also because the added administrative overhead (policing use, etc) that is introduced by releasing software under the GPL isn't necessarily worth the patches you might force out of those that might use your code.