This ticket will track work related to building user preferences (or other tools) that allow users to select which usergroups can and cannot edit on their user page, user talk page, or subpages.
Wiki documentation
https://meta.wikimedia.org/wiki/Community_health_initiative/Allow_users_to_restrict_which_user_groups_can_edit_their_own_user_page,_talk_page_and_subpages_thereof