I changed code above. You can change user level (QA_USER_LEVEL_MODERATOR) along list below.
define('QA_USER_LEVEL_APPROVED', 10);
define('QA_USER_LEVEL_EXPERT', 20);
define('QA_USER_LEVEL_EDITOR', 50);
define('QA_USER_LEVEL_MODERATOR', 80); // <== Now level
define('QA_USER_LEVEL_ADMIN', 100);
define('QA_USER_LEVEL_SUPER', 120);