The footer of the GNU website includes this friendly graphic inviting you to meet the Free Software Gang:
(I don’t see NetBSD or DragonFly BSD anywhere, but let’s pretend the latter is buzzing around an orange flag atop the Inkscape mountain. They can always ride on an illumos phoenix to get there).
We may have our disagreements about licensing, but anything that fosters collaboration is a good thing. Linux benefits from some of FreeBSD’s userland and utilities, everyone uses OpenSSH from the OpenBSD project, and desktop BSD users like me run GPL’d window managers or desktop environments.
The Free Software Gang page lists the following under Operating Systems and Friends:
Refusing to mention or link to the BSDs, despite padding out their own graphic with their logos, strikes me as a tad disingenuous. The Free Software Foundation consider their licences free and compatible with the GPL.
For an FSF site so preoccupied with licencing and software freedom, they literally violated—if only in spirit—the only clause in the modern BSD/ISC licence, which requires attribution. I’ve come to expect that more and more; free software either means GPL, or GTFO. Which is a shame, for the reasons stated earlier in this post.