Regardless of how an image you have uploaded is licensed for use on Wikipedia, please include information on its source. This allows admins and other editors to verify the copyrights. This includes pictures you created yourself: if you took the photo, give yourself credit – you deserve it!
This user exists. This is not claiming that this user is not a bot, sockpuppet, blocked user, or inactive user, it is just stating that this user EXISTS. He/She/It/They would like to point out that the reader must exist as well.