Index: wp-includes/comment.php
===================================================================
--- wp-includes/comment.php	(revision 17420)
+++ wp-includes/comment.php	(working copy)
@@ -636,7 +636,7 @@
 		else
 			$approved = 0;
 		if ( wp_blacklist_check($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent) )
-			$approved = 'spam';
+			$approved = 'trash';
 	}
 
 	$approved = apply_filters( 'pre_comment_approved', $approved, $commentdata );
Index: wp-admin/options-discussion.php
===================================================================
--- wp-admin/options-discussion.php	(revision 17420)
+++ wp-admin/options-discussion.php	(working copy)
@@ -148,7 +148,7 @@
 <tr valign="top">
 <th scope="row"><?php _e('Comment Blacklist') ?></th>
 <td><fieldset><legend class="screen-reader-text"><span><?php _e('Comment Blacklist') ?></span></legend>
-<p><label for="blacklist_keys"><?php _e('When a comment contains any of these words in its content, name, URL, e-mail, or IP, it will be marked as spam. One word or IP per line. It will match inside words, so &#8220;press&#8221; will match &#8220;WordPress&#8221;.') ?></label></p>
+<p><label for="blacklist_keys"><?php _e('When a comment contains any of these words in its content, name, URL, e-mail, or IP, it will be put in the trash. One word or IP per line. It will match inside words, so &#8220;press&#8221; will match &#8220;WordPress&#8221;.') ?></label></p>
 <p>
 <textarea name="blacklist_keys" rows="10" cols="50" id="blacklist_keys" class="large-text code"><?php echo esc_textarea( get_option( 'blacklist_keys' ) ); ?></textarea>
 </p>