@since: BuddyPress 4.4.0
Description
BP_XProfile_Field::get_allow_custom_visibility()

Get whether the field’s default visibility can be overridden by users.

Source: bp-xprofile/classes/class-bp-xprofile-field.php:880

bp_nouveau_groups_get_group_invites_setting()

Gets the displayed user group invites preferences

Source: bp-templates/bp-nouveau/includes/groups/template-tags.php:200

notify_moderator

Filters whether to send the site moderator email notifications, overriding the site setting.

Source: bp-core/bp-core-wp-emails.php:378