I didn't find any issues about this, but it seems to me as a useful feature. Basically, I want to address my users by their full name, always. Right now I can only use User.name which return full name only if no actual @username is provided. And so I have to use this snippet every time:

def get_name(user):
    name = user.first_name
    if user.last_name:
        name += ' ' + user.last_name
    return name

Why not add it as User.full_name?