I'm testing this plugin on a site with a very large upload directory (30gb) and attempting to send the backups to DropBox. I see there is an option to limit the number of backups that are stored locally - but am not seeing that option for DropBox as well. Is there some way to limit the number of snapshots kept there? It's going to grow ridiculously big very quickly if not.
Also, is that too big anyway to be backing up via a plugin? Some better way?