BuddyPress.org

If you want to display both usernames and display names you can use this version in your theme’s functions.php:

/*Display Username and display name in Directory */
function my_member_username() {
global $members_template;
if ( empty($members_template->member->fullname) ) {
$members_template->member->fullname = $members_template->member->display_name;
}
$toReturn =$members_template->member->fullname .’ @’.$members_template->member->user_login;
return $toReturn;
}
add_filter( ‘my_member_username’, ‘wp_filter_kses’ );
add_filter( ‘my_member_username’, ‘stripslashes’ );
add_filter( ‘my_member_username’, ‘strip_tags’ );

add_filter(‘bp_member_name’,’my_member_username’);