function osu_author_bio($value, $user_id) {

            $runPHPFunction = false;

            if (isset($_GET['userID'])){
                    $runPHPFunction = true;
            }else{
                    $userID = get_query_var( 'username' );
                    if (!empty($userID))
                        $runPHPFunction = true;
            }


            if ($runPHPFunction)  //if we are on the userlisting page
                    return nl2br($value); // this PHP function should read newlines (n) and output HTML breaks
            else
                    return $value;
    }
    add_filter('get_the_author_description', 'osu_author_bio', 10, 2);