Definitely not "nobody". I've had several clients where the dropbox folder was where work got done. For all of my non-git and non-movie projects, dropbox is where the files live and are worked on.

When a friend had his laptop stolen he said that it wasn't a big deal other than the money lost, as 90% of his files were in dropbox or Google drive.

In my world at least, this is the way the wind is blowing.