> Btrfs is NOT constantly eating people data. You have nothing to back this statement.

Constantly may be a strong word, but there is a long line of people sharing tales of woe. It's good that it works for you, but that's not a universal experience.

> It's widely used and the default filesystem of several distributions.

As a former user, that's horrifying.

> Most of the problems are like for the other filesystem: caused by the hardware.

The whole point of btrfs over (say) ext4 is that it's supposed to hold up when things don't work.