Good morning . If I understand correctly: members that are given a role on a forum would be given a title describing that role, and would not be using the user title ladder. This is why I opted to use the title set in the user group.
I agree, but we have the user title ladder enabled for the registered user group only and use the legend widget to display all user groups. Since it is limited to displaying user groups that have user title ladder disabled, the registered user group doesn't show up in the legend widget.