编辑了我的答案，因为原始代码有轻微缺陷。测试并三次检查，以确保它完全符合您的要求。：）

Enjoy!

function comment_author_profile_link(){

/* Get the comment author information */

global $comment;
$comment_ID = $comment->user_id;
$author = get_comment_author( $comment_ID );
$url = get_comment_author_url( $comment_ID );

/* Check if commenter is registered or not */
switch ($comment_ID == 0) {

case true: 
/* Unregistered commenter */    

    if ( empty( $url ) || \'http://\' == $url )
        $return = $author;
    else
        $return = "<a href=\'$url\' rel=\'external nofollow\' class=\'url\' target=\'_blank\'>$author</a>";

break;

case false:
    /* Registered Commenter */      

    $registeredID = get_userdata($comment_ID);
    $authorName = $registeredID->display_name;
    $authorLevel = $registeredID->user_level;
    $authorURL = $registeredID->user_url;
    $authorID = $registeredID->ID;

        /* Check if they have edit posts capabilities & is author or higher */

    if ($authorLevel > 1 && user_can($authorID,\'edit_posts\') == true && count_user_posts($authorID) > 0) {
    /* Author+ with Posts */

    $return = \'<a href="\'.home_url().\'/?author=\'.$authorID.\'">\'.$authorName.\'</a>\';

    } else {
    /* Below Author */

    if ( empty( $authorURL ) || \'http://\' == $authorURL )
        $return = $authorName;
    else
        $return = "<a href=\'$authorURL\' rel=\'external nofollow\' class=\'url\' target=\'_blank\'>$authorName</a>";

    }

break;
}

return $return;
}

add_filter(\'get_comment_author_link\', \'comment_author_profile_link\');