有一个过滤器：bp_xprofile_get_visibility_levels. 它用于过滤可见性级别数组，初始化如下：

$this->visibility_levels = array(
    \'public\' => array(
        \'id\'      => \'public\',
        \'label\' => _x( \'Everyone\', \'Visibility level setting\', \'buddypress\' )
    ),
    \'adminsonly\' => array(
        \'id\'      => \'adminsonly\',
        \'label\' => _x( \'Only Me\', \'Visibility level setting\', \'buddypress\' )
    ),
    \'loggedin\' => array(
        \'id\'      => \'loggedin\',
        \'label\' => _x( \'All Members\', \'Visibility level setting\', \'buddypress\' )
    )
);

if ( bp_is_active( \'friends\' ) ) {
    $this->visibility_levels[\'friends\'] = array(
        \'id\'    => \'friends\',
        \'label\' => _x( \'My Friends\', \'Visibility level setting\', \'buddypress\' )
    );
}

因此，在你的情况下，你会想：

add_filter(
    \'bp_xprofile_get_visibility_levels\',
    function($levels)
        {
        // remove "My Friends"
        if(isset($levels[\'friends\'])) unset($levels[\'friends\']);
        // remove "All Members"
        if(isset($levels[\'loggedin\'])) unset($levels[\'loggedin\']);
        // change "Everyone" to "Public"
        if(isset($levels[\'public\'])) 
            $levels[\'public\'][\'label\']=_x(\'Public\',\'Visibility level setting\',\'buddypress\');
        // change "Only Me" to "Private"
        if(isset($levels[\'adminsonly\']))
            $levels[\'adminsonly\'][\'label\']=_x(\'Private\',\'Visibility level setting\',\'buddypress\');
        return $levels;
        }
    );

作为旁注，这里有一些翻译方面的考虑，但我想详细阐述这一点超出了范围。