[laumars]

> for most use cases, it is a reasonable and working replacement for ZFS.

That is a huuuuge overstatement for the current state of Btrfs. In some specific domains it is a working replacement. But for most domains it still falls far behind ZFS in terms of stability, resiliency or even ease of use.

By all means if you want to use btrfs then go for it. But the favourable comparisons people make when comparing btrfs to ZFS is a combination of wishful thinking and not having really bullied their fs into those extreme edge cases where the cracks begin to show. And frankly I’d rather depend on something that has had those assurances for 10+yrs already than have the hassle of explaining downtime to restore data on production systems.