I sometimes share one or more files with others by providing them with a temporary Dropbox Folder link. Generally I do this to avoid sending oversized files by email. Usually, after the person has seen or downloaded the files, I would like to delete the folder to avoid clutter and save space. It would be very helpful if Dropbox showed me when the folder was viewed and by whom. That way I would know when I can delete it without interfering with our purpose.