If, after searching a no coded photo, you find a photocoded page and the informations that you read make you think to a fraudolent use of it (for example because you found the photo in a dating app but the owner wrote that he doesn’t use this photo in a dating app), you can send an allarm:
at the bottom of each photocoded page you can find the “CONTACT ME” section with the “REPORT ABUSE” form that you can use to inform the owner.