diff --git a/phpBB/common.php b/phpBB/common.php
index c1787f6773..dc059887e3 100644
--- a/phpBB/common.php
+++ b/phpBB/common.php
@@ -130,7 +130,6 @@ $phpbb_subscriber_loader = $phpbb_container->get('event.subscriber_loader');
 $template = $phpbb_container->get('template');
 $phpbb_style = $phpbb_container->get('style');
 
-// Notifications manager
 $phpbb_notifications = $phpbb_container->get('notification_manager');
 
 $ids = array_keys($phpbb_container->findTaggedServiceIds('container.processor'));
diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index 0af8e824c8..2827dae1a8 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -1386,7 +1386,6 @@ function markread($mode, $forum_id = false, $topic_id = false, $post_time = 0, $
 			$forum_id = array($forum_id);
 		}
 
-		// Mark topic notifications read for this user in this forum
 		$phpbb_notifications->mark_notifications_read_by_parent(array('topic', 'approve_topic'), $forum_id, $user->data['user_id'], $post_time);
 
 		// Mark all post/quote notifications read for this user in this forum
diff --git a/phpBB/includes/functions_admin.php b/phpBB/includes/functions_admin.php
index 3deb2e9c59..893c7a247d 100644
--- a/phpBB/includes/functions_admin.php
+++ b/phpBB/includes/functions_admin.php
@@ -716,7 +716,6 @@ function delete_topics($where_type, $where_ids, $auto_sync = true, $post_count_s
 		set_config_count('num_topics', $approved_topics * (-1), true);
 	}
 
-	// Delete notifications
 	$phpbb_notifications->delete_notifications(array('topic', 'approve_topic', 'topic_in_queue'), $topic_ids);
 
 	return $return;
@@ -897,7 +896,6 @@ function delete_posts($where_type, $where_ids, $auto_sync = true, $posted_sync =
 		delete_topics('topic_id', $remove_topics, $auto_sync, $post_count_sync, false);
 	}
 
-	// Delete notifications
 	$phpbb_notifications->delete_notifications(array('quote', 'bookmark', 'post', 'approve_post', 'post_in_queue'), $post_ids);
 
 	return sizeof($post_ids);
diff --git a/phpBB/includes/functions_privmsgs.php b/phpBB/includes/functions_privmsgs.php
index 6c31c6d6c3..4638091601 100644
--- a/phpBB/includes/functions_privmsgs.php
+++ b/phpBB/includes/functions_privmsgs.php
@@ -878,7 +878,6 @@ function update_unread_status($unread, $msg_id, $user_id, $folder_id)
 
 	global $db, $user, $phpbb_notifications;
 
-	// Mark the PM as read
 	$phpbb_notifications->mark_notifications_read('pm', $msg_id, $user_id);
 
 	$sql = 'UPDATE ' . PRIVMSGS_TO_TABLE . "
@@ -1097,7 +1096,6 @@ function delete_pm($user_id, $msg_ids, $folder_id)
 		$user->data['user_unread_privmsg'] -= $num_unread;
 	}
 
-	// Delete Notifications
 	$phpbb_notifications->delete_notifications('pm', array_keys($delete_rows));
 
 	// Now we have to check which messages we can delete completely
@@ -1262,7 +1260,6 @@ function phpbb_delete_user_pms($user_id)
 					AND ' . $db->sql_in_set('msg_id', $delivered_msg);
 			$db->sql_query($sql);
 
-			// Delete Notifications
 			$phpbb_notifications->delete_notifications('pm', $delivered_msg);
 		}
 
@@ -1276,7 +1273,6 @@ function phpbb_delete_user_pms($user_id)
 				WHERE ' . $db->sql_in_set('msg_id', $undelivered_msg);
 			$db->sql_query($sql);
 
-			// Delete Notifications
 			$phpbb_notifications->delete_notifications('pm', $undelivered_msg);
 		}
 	}
@@ -1321,7 +1317,6 @@ function phpbb_delete_user_pms($user_id)
 				WHERE ' . $db->sql_in_set('msg_id', $delete_ids);
 			$db->sql_query($sql);
 
-			// Delete Notifications
 			$phpbb_notifications->delete_notifications('pm', $delete_ids);
 		}
 	}
diff --git a/phpBB/includes/mcp/mcp_pm_reports.php b/phpBB/includes/mcp/mcp_pm_reports.php
index 227c89bb79..001edfd8db 100644
--- a/phpBB/includes/mcp/mcp_pm_reports.php
+++ b/phpBB/includes/mcp/mcp_pm_reports.php
@@ -90,7 +90,6 @@ class mcp_pm_reports
 					trigger_error('NO_REPORT');
 				}
 
-				// Mark the notification as read
 				$phpbb_notifications->mark_notifications_read_by_parent('report_pm', $report_id, $user->data['user_id']);
 
 				$pm_id = $report['pm_id'];
diff --git a/phpBB/includes/mcp/mcp_queue.php b/phpBB/includes/mcp/mcp_queue.php
index b23e5f4e45..72f1c00c72 100644
--- a/phpBB/includes/mcp/mcp_queue.php
+++ b/phpBB/includes/mcp/mcp_queue.php
@@ -86,7 +86,6 @@ class mcp_queue
 					{
 						$post_id = (int) $topic_info[$topic_id]['topic_first_post_id'];
 
-						// Mark the notification as read
 						$phpbb_notifications->mark_notifications_read('topic_in_queue', $topic_id, $user->data['user_id']);
 					}
 					else
@@ -95,7 +94,6 @@ class mcp_queue
 					}
 				}
 
-				// Mark the notification as read
 				$phpbb_notifications->mark_notifications_read('post_in_queue', $post_id, $user->data['user_id']);
 
 				$post_info = get_post_data(array($post_id), 'm_approve', true);
@@ -612,13 +610,10 @@ function approve_post($post_id_list, $id, $mode)
 		{
 			if ($post_id == $post_data['topic_first_post_id'] && $post_id == $post_data['topic_last_post_id'])
 			{
-				// Delete topic in queue notifications
 				$phpbb_notifications->delete_notifications(array('topic_in_queue'), $post_data['topic_id']);
 
-				// Forum Notifications
 				$phpbb_notifications->add_notifications('topic', $post_data);
 
-				// Notify poster?
 				if ($notify_poster)
 				{
 					$phpbb_notifications->add_notifications('approve_topic', $post_data);
@@ -626,13 +621,10 @@ function approve_post($post_id_list, $id, $mode)
 			}
 			else
 			{
-				// Delete post in queue notification
 				$phpbb_notifications->delete_notifications(array('post_in_queue'), $post_id);
 
-				// Topic Notifications
 				$phpbb_notifications->add_notifications(array('quote', 'bookmark', 'post'), $post_data);
 
-				// Notify poster?
 				if ($notify_poster)
 				{
 					$phpbb_notifications->add_notifications('approve_post', $post_data);
@@ -859,7 +851,6 @@ function disapprove_post($post_id_list, $id, $mode)
 			}
 		}
 
-		// Handle notifications (topic/post in queue)
 		foreach ($post_info as $post_id => $post_data)
 		{
 			if ($post_id == $post_data['topic_first_post_id'] && $post_id == $post_data['topic_last_post_id'])
@@ -912,7 +903,6 @@ function disapprove_post($post_id_list, $id, $mode)
 
 				if ($post_id == $post_data['topic_first_post_id'] && $post_id == $post_data['topic_last_post_id'])
 				{
-					// Notify poster?
 					if ($notify_poster)
 					{
 						$phpbb_notifications->add_notifications('disapprove_topic', $post_data);
@@ -920,7 +910,6 @@ function disapprove_post($post_id_list, $id, $mode)
 				}
 				else
 				{
-					// Notify poster?
 					if ($notify_poster)
 					{
 						$phpbb_notifications->add_notifications('disapprove_post', $post_data);
diff --git a/phpBB/includes/mcp/mcp_reports.php b/phpBB/includes/mcp/mcp_reports.php
index 7c6352a244..f6121e7e03 100644
--- a/phpBB/includes/mcp/mcp_reports.php
+++ b/phpBB/includes/mcp/mcp_reports.php
@@ -88,7 +88,6 @@ class mcp_reports
 					trigger_error('NO_REPORT');
 				}
 
-				// Mark the notification as read
 				$phpbb_notifications->mark_notifications_read('report_post', $post_id, $user->data['user_id']);
 
 				if (!$report_id && $report['report_closed'])
diff --git a/phpBB/includes/ucp/ucp_notifications.php b/phpBB/includes/ucp/ucp_notifications.php
index 321730a64b..aeace13968 100644
--- a/phpBB/includes/ucp/ucp_notifications.php
+++ b/phpBB/includes/ucp/ucp_notifications.php
@@ -50,12 +50,10 @@ class ucp_notifications
 						{
 							if ($request->is_set_post($type . '_notification') && !isset($subscriptions[$type]))
 							{
-								// add
 								$phpbb_notifications->add_subscription($type);
 							}
 							else if (!$request->is_set_post($type . '_notification') && isset($subscriptions[$type]))
 							{
-								// remove
 								$phpbb_notifications->delete_subscription($type);
 							}
 
@@ -63,12 +61,10 @@ class ucp_notifications
 							{
 								if ($request->is_set_post($type . '_' . $method) && (!isset($subscriptions[$type]) || !in_array($method, $subscriptions[$type])))
 								{
-									// add
 									$phpbb_notifications->add_subscription($type, 0, $method);
 								}
 								else if (!$request->is_set_post($type . '_' . $method) && isset($subscriptions[$type]) && in_array($method, $subscriptions[$type]))
 								{
-									// remove
 									$phpbb_notifications->delete_subscription($type, 0, $method);
 								}
 							}
diff --git a/phpBB/report.php b/phpBB/report.php
index 9f3b09d5ba..07b9711ae1 100644
--- a/phpBB/report.php
+++ b/phpBB/report.php
@@ -185,7 +185,6 @@ if ($submit && $reason_id)
 		$lang_return = $user->lang['RETURN_TOPIC'];
 		$lang_success = $user->lang['POST_REPORTED_SUCCESS'];
 
-		// Notify relevant users
 		$phpbb_notifications->add_notifications('report_post', array_merge($report_data, $row, $forum_data, array(
 			'report_text'	=> $report_text,
 		)));
@@ -216,7 +215,6 @@ if ($submit && $reason_id)
 		$lang_return = $user->lang['RETURN_PM'];
 		$lang_success = $user->lang['PM_REPORTED_SUCCESS'];
 
-		// Notify relevant users
 		$phpbb_notifications->add_notifications('report_pm', array_merge($report_data, $row, array(
 			'report_text'	=> $report_text,
 			'from_user_id'	=> $report_data['author_id'],