I use packrat - so the files they suggest that I might have had deleted were recoverable (though none of them were an error). If dropbox kept backups like you'

I use packrat - so the files they suggest that I might have had deleted were recoverable (though none of them were an error). If dropbox kept backups like you're suggesting, people would be complaining about how you can't delete damning files from them and that law enforcement was abusing this.