His last sentence about ZFS is impossible to parse. Why aren't they using it?
"I’d love to see this in use, but, after having had excellent experiences with it on Linux for a couple of years, I’m a ZFS fanboy at this point; and, I don’t know how well it’s supported on SUSE, which is the distribution git.kde.org is running (although I’ve run it on Gentoo, Debian, and Ubuntu without any problems)."
He'd love to use it as he has had an excellent experience running it on gentoo/debian/ubuntu linux, however as he's unsure of its support on suse and prefers ZFS now anyway he won't.
"I’d love to see this in use, but, after having had excellent experiences with it on Linux for a couple of years, I’m a ZFS fanboy at this point; and, I don’t know how well it’s supported on SUSE, which is the distribution git.kde.org is running (although I’ve run it on Gentoo, Debian, and Ubuntu without any problems)."