They’re using a Microsoft product called how-old.net. It’s supposed to predict the age you look in that photo, and it’s kind of a cool feature. The site asks you to click a button and upload your own photo, with a short disclaimer underneath that reads, “P.S. We don’t keep the photo.”
However, by posting, uploading, inputting, providing, or submitting your Submission, you are granting Microsoft, its affiliated companies, and necessary sublicensees permission to use your Submission in connection with the operation of their Internet businesses (including, without limitation, all Microsoft services), including, without limitation, the license rights to: copy, distribute, transmit, publicly display, publicly perform, reproduce, edit, translate, and reformat your Submission; to publish your name in connection with your Submission; and to sublicense such rights to any supplier of the Website Services.