Now I downvoted all your comments in this thread for they are unconstructive both in the negative and the positive directions. This is a fanboy-like attitude, where you ignore the fact I explained above, and attack other comments. You take quantity over quality.
BSDs and other systems have their user bases. Those may be small, but they exist. Both GNU/Linux and BSDs are inferior to the ideal system where most legacy cruft shall be gone, but in order to reach that ideal system we should develop the research projects, the ones with little-to-no use. E.g. Plan9. Or microkernels. The all-utf8 approach is perfect, but it can't easily propagate to the mainline if it is not tested for long in research projects, and the ecosystem adapts in this timeframe. So we'd rather not attack them, but let them happen. They'll always be better than mainline, but lesser-adopted, but when they die, the good parts of them will propagate to GNU/Linux, BSD, etc. Take ZFS for example, it was developed on a Sun system, it's not widely adopted, but its now on FreeBSD and Linux (i.e. btrfs, the same concept), for you to enjoy. Or the research in functional languages. Many of those are not adopted, but many features are now propagating to mainline languages.
Please become better informed: https://en.wikipedia.org/wiki/Unix_wars#BSD_and_the_rise_of_...
"BSD purged copyrighted AT&T code from 1989 to 1994. During this time various open-source BSD x86 derivatives took shape, starting with 386BSD, which was soon succeeded by FreeBSD and NetBSD."
BSD was an OS long before 1989; the open-source BSD's weren't new projects written from scratch, but made possible by purging AT&T copyrighted code from the code base.
Linux (the kernel) only started in 1991, from scratch. The GNU parts that go into a "GNU/Linux" --- the GNU C compiler and utilities from the GNU project --- started in 1984. But that is still later than BSD. 1BSD was released in 1978: [https://en.wikipedia.org/wiki/Berkeley_Software_Distribution...]
Seriously, it should be obvious that BSDs mean, in the context of my comment, modern BSDs. The GNU/linux environment was practically usable before those were. Your comment is pure evil rhetoric.