Added Feature - Cutoff for deletion of threads by OP if they have a certain number of replies.

inc/config.php

@@ -524,6 +524,8 @@
 
 	// Allow users to delete their own posts?
 	$config['allow_delete'] = true;
+	// If thread has at least this number of replies, OP can't delete it anymore. (Set to false to disable)
+	$config['allow_delete_cutoff'] = 10;
 	// How long after posting should you have to wait before being able to delete that post? (In seconds.)
 	$config['delete_time'] = 10;
 	// Reply limit (stops bumping thread when this is reached).
@@ -1232,6 +1234,7 @@
 	$config['error']['fileexistsinthread']	= _('That file <a href="%s">already exists</a> in this thread!');
 	
 	$config['error']['delete_too_soon']	= _('You\'ll have to wait another %s before deleting that.');
+	$config['error']['delete_post_cutoff']	= _('You can\'t delete a post with this many replies.');
 	$config['error']['mime_exploit']	= _('MIME type detection XSS exploit (IE) detected; post discarded.');
 	$config['error']['invalid_embed']	= _('Couldn\'t make sense of the URL of the video you tried to embed.');
 	$config['error']['captcha']		= _('You seem to have mistyped the verification.');

post.php

@@ -239,6 +239,14 @@ if (isset($_POST['delete'])) {
 				deleteFile($id);
 				modLog("User deleted file from his own post #$id");
 			} else {
+
+				// Check if thread, and that the delete cutoff post count hasn't been reached
+				if($config['allow_delete_cutoff'] && $post['thread'] === NULL) {
+					$count_query = query(sprintf("SELECT COUNT(*) FROM ``posts_%s`` WHERE `thread` = %d", $board['uri'], (int)$id));
+					if($count_query->fetchColumn(0) >= $config['allow_delete_cutoff'])
+						error($config['error']['delete_post_cutoff']);
+				}
+
 				// Delete entire post
 				deletePost($id);
 				modLog("User deleted his own post #$id");