I have been running btrfs at home with no losses. Mostly single, raid1 in a server. Array has been up ~4 years. While I doubt your comment that it will "likely

I have been running btrfs at home with no losses. Mostly single, raid1 in a server. Array has been up ~4 years. While I doubt your comment that it will "likely lose your data", I am curious to know when (approximate kernel version/year) and how your losses occurred. There was clearly a history of data loss bugs, but it seems a little unfair to malign the system today after heaps of engineering went into stabilizing the filesystem.