I have to disagree on that blanket statement with you. You base it on the fact that I reported failed audits and after I mentioned that I use BTRFS you quickly blamed BTRFS for that. But the truth is, that there was a bug in Storj where already deleted pieces got audited and therefore failed. Failed Audits (v0.21.1)
The bug seems to be fixed now and I don’t have failed audits anymore since then.
BTRFS on a single disk is perfectly fine. The BTRFS status page only considers RAID5 unstable and the issue you quoted affects only a 2 drive RAID1 when 1 drive fails and the user mounted it a second time in degraded state. I have a 3 drive RAID1 as my media storage and after 1 drive failed and multiple degraded mounts I was able to replace the disk without problems.