Z:gnu-www-ja-about-gnu--4d0e94-GNU has been supported in seve/en

GNU has been supported in several ways by the Free Software Foundation, the nonprofit organization also founded by rms to advocate free software ideals. Among other things, the FSF accepts copyright assignments and disclaimers, so it can act in court on behalf of GNU programs. (To be clear, contributing a program to GNU does not require transferring copyright to the FSF. If you do assign copyright, the FSF will enforce the GPL for the program if someone violates it; if you keep the copyright, enforcement will be up to you.)