Well, they are all putting the effort into killing file share sites because ppl are mainly uploading pirated games and movies there.
My advide: DON'T use any form of cloud storage (no matter for what purpose).
Why?
Well, you are basically leaving your data in someone else's hands so if some shit happens OR the company running the servers goes bankrupt and didn't make (enough) backups, your data will be gone
Having your data on a HDD of your own (and a second one as backup) means your data is more or less safe and mass data deletions are "not your problem"