I mainly mean that it'll be a while before btrfs stabilizes and even then, it's been how many next-gen file systems in floss land each with critical issues, usually non-technical in nature in even the past 5 years?
Kind of weird how Linux filesystems always seem to have problems....it seems like that's the sort of problem open source would do a reasonable good job at.
Do they have more problems or more users in many more different situations? And then they are vocal...
ZFS has this sterling reputation but a fair number of people have actually lost data to it. Some of it is bad hardware,orb ad choices in hardware, some of it is bad administration, it's still happened.