It could be that many people hold the belief that only those without a beautiful or acceptable appearance would be interested in meeting through correspondence, but it could be the salvation for a person of unique good looks. They are often used to being discounted mentally as a partner due to their physical attractiveness, and they might find relief in a relationship that begins without pictures. Modern electronics have provided email and chat rooms for those interested in meeting others without being present in real life.
Going through life with certain gifts can take away from the expectation of living in a normal world, and finding ways to eliminate those prejudices can be helpful when exploring the possibility of a relationship. Meeting someone online through an email or chat room gives the beautiful person a way to substitute their own visage with an avatar, and they can hide behind it until their looks are no longer an issue.
There are people who have been known to refuse conversation with those unwilling to provide a photo, but moving on to someone more amenable could produce a better relationship. A person unconcerned with looks would be more likely go accept what their potential partner provides online, and they are willing to wait until they meet in person to find out if their looks match their personality. They might be stunned silent when they find someone who could be a fashion model has replaced their chat buddy, but a few minutes of good conversation could help them make the adjustment.
Finding a partner in life often begins with being attracted by looks, but it should not really be a part of the criteria for dating anyone. People who are mature have often found that looks fade with time, and it is the good nature inside a person that keeps a relationship fresh and happy.