We know that much of the world relies on a combination of
Dropbox and Microsoft Office to get work done. In fact,
Dropbox is home to over 35 billion Office documents,
spreadsheets, and presentations.
See, you already lost me as a customer by highlighting the level of access you have into your customer's private data, and your willingness to exploit it for commercial gain.
See Tarsnap. Good cryptography means you don't have to trust the hosting provider. Obviously Dropbox doesn't offer that so then all we have left is how much we trust Dropbox not to look, and to treat their customers' data privacy as sacrosanct. Apparently that's not the case either, since they are scanning your folder content for marketing purposes.
