Reply to Re: Stalker's.
If you don't have an account, just leave the password field blank.
Not necessarily. There's a lot of information stored in a photograph alone (such as the type of the camera that was used to take the picture; this you can often find out simply by opening the picture with a text editor, eg. Notepad). Also the date and time the picture was taken. Apparently, some camera(phone)s even have "geotagging", which marks the exact location where the picture was taken. Nice going!
Google for "EXIF data" for more about the subject.
Google for "EXIF data" for more about the subject.