A few others have used photos of me naked to create images, which they notified me about or sent to me. They were and are all fully aware of the photos public domain status and knew they had every right to use the photos.
Since the images they created are their own property, their permission was given to include the images in public posts online. This was not only recommended by the creators of the images, but preferred by them, Obviously information about those creators mustn't be revealed so as to ensure their privacy, but their created images of me can be publicly shared.
Although I tend not to ask where the photos of me were found and obtained, since that is mostly irrelevant and is not really any of my business, but in some cases it is mentioned to me where they were obtained.