Why oh why would ANYONE trust any "cloud" server (i.e. - hard drives somewhere (who knows where?) that you connect to via the internet).  Convenient?  Yes, admittedly so.  Secure?  Your 'stuff' is private? Decidedly no.  
It's all back to technical ignorance - because managing data, POP email, and backups, or copying a bookmarks list to another device, or keeping a computer clean and operating coolly is "too hard".