> No one knows anything about a user on Stack Overflow unless they explicitly announce it StackOverflow has names and profile pictures. Users can choose not t

> No one knows anything about a user on Stack Overflow unless they explicitly announce it StackOverflow has names and profile pictures. Users can choose not to have their own photo or name but some do and provides some identifiability. Though I agree about your general point that the primary and most obvious issue is with new users feeling less welcome than specific groups of people.