Cloud based storage and file syncing services like Dropbox or Google Drive wile offer great comfort of having access to your data while on move (you don need the internet), it does pose very serious security, privacy and ownership risks. Any data that you put on these public cloud storage service is accessible to these companies and is under government surveillance. The worst part is you can be blocked from accessing your data because of some gazillion issues. So, while such cloud data syncing or storage services have amazing advantages they have risk as well. It think it should be regulated and in case of blocked account as user must be allowed to download a copy of his data before he loses access to it.