I know that many have submitted the idea to add a recycle bin so we can recover assets that are deleted accidentally. SInce it doesn't seem like something you'll be implementing, would you consider rearranging the Draft options menu order so that "Approve Draft" is not directly next to "Discard Draft"? It's really easy to accidentally click Discard when you mean to click Approve, and since Marketo doesn't confirm whether you really want to delete something and there's no recycle bin, the draft is completely gone.