"Hey man, thank you for bringing this to our attention. Wanna a free t-shirt? Anyways, be good!" Edit - On a more serious note, I think they tried to enforce a

"Hey man, thank you for bringing this to our attention. Wanna a free t-shirt? Anyways, be good!" Edit - On a more serious note, I think they tried to enforce account creation to a cellphone number instead of email.