for curiosity sake: who is actually using dragonfly bsd and why?
I've deployed it a bit in labs. I'm always watching it closely because Hammer is very important.
Hammer?
One of the world's most advanced fileystems. Dragonfly is important as a kernel alternative ecosystem to FreeBSD, from which it split (in many ways Dragonfly is the real FreeBSD and FreeBSD is the "new" product that split from it) but its real relevance is as a filesystem research platform. The kernel maintainer there writes a totally unique filesystem, called Hammer, just for Dragonfly.