In the user profile there is a field to enter your real name (which is optional), but that field is never shown when visiting the user profile. I think it would be interesting as it can allow for a better user experience. I usually participate in C++ question and come across the same people to whom I still cannot refer by name, nor can they refer to me by name.
My proposal is leaving the rest of the system as it is, but adding the real name to the user profile. After all, the age does show and I think it is less interesting than the name.