Not that it excuses any of this on Apple's part, but holy shit do people with like a ton of music not realize backups are important? Like seriously buy a NAS of any caliber from anywhere or an external HDD or use dropbox but don't put all your eggs in one basket people. I get that "shit happens" and all, but I don't understand how backups are not more prominently known in tech culture as mandatory for data you care a…
A backup doesn't help when a service is silently changing your files.
Once you realize a file isn't right, you look into it and discover that it was automatically replaced by the service three or four years ago. It is not reasonable to expect anyone - even a tech-literate person - to keep 300 hard drives around for a decade or more, and audit every change made on them hour by hour.