So the only way to give group admins and group moderators the ability to edit or delete posts/threads made by other group members in their discussion forum is for a forum administrator to go in after the fact and assign them moderator privileges over that board, and later unassign them if needed? If so, the extra forum administrator work involved seems undesirable.
Or is it somehow possible to configure those social group admin/moderator roles to promote to a standard XenForo usergroup (which I see is of course available), but which would then only grant them permission to moderate posts within their group's own discussion forum rather than that permission applying throughout every other forum as well? It's my understanding that those usergroup permissions would grant all provided permisisions throughout all forums, though maybe I'm missing something.