One thing cool about OpenBSD is that the base OS has a lot of things out of the box. I think a lot of OpenBSD-fied tools like httpd, spamd are part of the base OS. You can even setup wireguard tunnels using nothing but ifconfig.
For starters, Linux is messy. Each distro is different from each other with little consistency. There are even distros specific to device families, like the Raspberry Pi.
Sometimes we don't want to have to keep around a cheat sheet so we can have commands we're accustomed to, then we have the corresponding ones we need to know for a separate device.
The BSDs are much cleaner and more consistent. You can run the same OS on your desktop and your Arm machine. Tinkering is fine, but there's a time and a place for everything, and sometimes we just want to run stuff and tinker with what we're running, not necessarily with the underlying OS.