I do use commits as a metric as well when I evaluate stuff. But we talk about filesystems here, in particular about a filesystem that is battle-tested on very large installations and under development for more than 13 years. An answer purely on git commits would be completely useless. The only place where I rely for big parts on that metric is NPM modules :)

I agree with that for pretty much everything except filesystems. I moved to ZFS 11 years ago (on FreeBSD) where everything was pretty new and LVM on Linux started to become common.

I remember too well how careful I had to be with every single operation I did regarding partitions, RAID and filesystem. A wrong move and say goodbye to the filesystem, I've seen that with sysadmin colleagues on Linux on a regular base. With some exceptions ZFS prevents me of doing stupid things with my filesystem and that's exactly what I expect from something where I store all my (and others) data. And the fact it can do that is because it does most of these things under one roof.

Someone asked for more KLF Stuff, check www.klf.de for a good list of stuff which is released by them.