diff --git a/dl.php b/dl.php
index d9ce28af0..5e1978a81 100644
--- a/dl.php
+++ b/dl.php
@@ -143,7 +143,6 @@ if (!$authorised) {
 
 $datastore->rm('cat_forums');
 
-
 // Check tor status
 if (!IS_AM) {
     $sql = 'SELECT tor_status, poster_id FROM ' . BB_BT_TORRENTS . ' WHERE attach_id = ' . (int)$attachment['attach_id'];
@@ -162,7 +161,6 @@ if (!IS_AM) {
 }
 
 // Get Information on currently allowed Extensions
-
 $rows = get_extension_informations();
 $num_rows = count($rows);
 
diff --git a/poll.php b/poll.php
index e5b7dd27b..73d8cc321 100644
--- a/poll.php
+++ b/poll.php
@@ -14,10 +14,10 @@ require __DIR__ . '/common.php';
 // Start session management
 $user->session_start(['req_login' => true]);
 
-$mode = (string)@$_POST['mode'];
-$topic_id = (int)@$_POST['topic_id'];
-$forum_id = (int)@$_POST['forum_id'];
-$vote_id = (int)@$_POST['vote_id'];
+$mode = (string)$_POST['mode'];
+$topic_id = (int)$_POST['topic_id'];
+$forum_id = (int)$_POST['forum_id'];
+$vote_id = (int)$_POST['vote_id'];
 
 $return_topic_url = TOPIC_URL . $topic_id;
 $return_topic_url .= !empty($_POST['start']) ? "&start=" . (int)$_POST['start'] : '';
@@ -26,15 +26,17 @@ set_die_append_msg($forum_id, $topic_id);
 
 $poll = new TorrentPier\Legacy\Poll();
 
-// проверка валидности $topic_id
+// Checking $topic_id
 if (!$topic_id) {
     bb_die($lang['INVALID_TOPIC_ID']);
 }
+
+// Getting topic data if present
 if (!$t_data = DB()->fetch_row("SELECT * FROM " . BB_TOPICS . " WHERE topic_id = $topic_id LIMIT 1")) {
     bb_die($lang['INVALID_TOPIC_ID_DB']);
 }
 
-// проверка прав
+// Checking the rights
 if ($mode != 'poll_vote') {
     if ($t_data['topic_poster'] != $userdata['user_id']) {
         if (!IS_AM) {
@@ -43,7 +45,7 @@ if ($mode != 'poll_vote') {
     }
 }
 
-// проверка на возможность вносить изменения
+// Checking the ability to make changes
 if ($mode == 'poll_delete') {
     if ($t_data['topic_time'] < TIMENOW - $bb_cfg['poll_max_days'] * 86400) {
         bb_die(sprintf($lang['NEW_POLL_DAYS'], $bb_cfg['poll_max_days']));
@@ -54,20 +56,26 @@ if ($mode == 'poll_delete') {
 }
 
 switch ($mode) {
-    // голосование
     case 'poll_vote':
+        // Checking for poll existence
         if (!$t_data['topic_vote']) {
             bb_die($lang['POST_HAS_NO_POLL']);
         }
+
+        // Checking that the topic has not been locked
         if ($t_data['topic_status'] == TOPIC_LOCKED) {
             bb_die($lang['TOPIC_LOCKED_SHORT']);
         }
+
+        // Checking that poll has not been finished
         if (!\TorrentPier\Legacy\Poll::poll_is_active($t_data)) {
             bb_die($lang['NEW_POLL_ENDED']);
         }
+
         if (!$vote_id) {
             bb_die($lang['NO_VOTE_OPTION']);
         }
+
         if (DB()->fetch_row("SELECT 1 FROM " . BB_POLL_USERS . " WHERE topic_id = $topic_id AND user_id = {$userdata['user_id']} LIMIT 1")) {
             bb_die($lang['ALREADY_VOTED']);
         }
@@ -79,71 +87,83 @@ switch ($mode) {
 				AND vote_id = $vote_id
 			LIMIT 1
 		");
+
         if (DB()->affected_rows() != 1) {
             bb_die($lang['NO_VOTE_OPTION']);
         }
 
+        // Voting process
         DB()->query("INSERT IGNORE INTO " . BB_POLL_USERS . " (topic_id, user_id, vote_ip, vote_dt) VALUES ($topic_id, {$userdata['user_id']}, '" . USER_IP . "', " . TIMENOW . ")");
-
         CACHE('bb_poll_data')->rm("poll_$topic_id");
-
         bb_die($lang['VOTE_CAST']);
         break;
-
-    // возобновить возможность голосовать
     case 'poll_start':
+        // Checking for poll existence
         if (!$t_data['topic_vote']) {
             bb_die($lang['POST_HAS_NO_POLL']);
         }
+
+        // Starting the poll
         DB()->query("UPDATE " . BB_TOPICS . " SET topic_vote = 1 WHERE topic_id = $topic_id");
         bb_die($lang['NEW_POLL_START']);
         break;
-
-    // завершить опрос
     case 'poll_finish':
+        // Checking for poll existence
         if (!$t_data['topic_vote']) {
             bb_die($lang['POST_HAS_NO_POLL']);
         }
+
+        // Finishing the poll
         DB()->query("UPDATE " . BB_TOPICS . " SET topic_vote = " . POLL_FINISHED . " WHERE topic_id = $topic_id");
         bb_die($lang['NEW_POLL_END']);
         break;
-
-    // удаление
     case 'poll_delete':
+        // Checking for poll existence
         if (!$t_data['topic_vote']) {
             bb_die($lang['POST_HAS_NO_POLL']);
         }
+
+        // Removing poll from database
         $poll->delete_poll($topic_id);
         bb_die($lang['NEW_POLL_DELETE']);
         break;
-
-    // добавление
     case 'poll_add':
+        // Checking that no other poll exists
         if ($t_data['topic_vote']) {
             bb_die($lang['NEW_POLL_ALREADY']);
         }
+
+        // Make a poll from $_POST data
         $poll->build_poll_data($_POST);
+
+        // Showing errors if present
         if ($poll->err_msg) {
             bb_die($poll->err_msg);
         }
+
+        // Adding poll info to the database
         $poll->insert_votes_into_db($topic_id);
         bb_die($lang['NEW_POLL_ADDED']);
         break;
-
-    // редактирование
     case 'poll_edit':
+        // Checking for poll existence
         if (!$t_data['topic_vote']) {
             bb_die($lang['POST_HAS_NO_POLL']);
         }
+
+        // Make a poll from $_POST data
         $poll->build_poll_data($_POST);
+
+        // Showing errors if present
         if ($poll->err_msg) {
             bb_die($poll->err_msg);
         }
+
+        // Updating poll info to the database
         $poll->insert_votes_into_db($topic_id);
         CACHE('bb_poll_data')->rm("poll_$topic_id");
         bb_die($lang['NEW_POLL_RESULTS']);
         break;
-
     default:
         bb_die('Invalid mode: ' . htmlCHR($mode));
 }