i havent played as much on test as i planned to, but i know of many times when bugs have been reported and yet made it live. id say most of bugs we see arent there cause test missed them, they are there cause they werent seen as bad enough to delay the update hitting live. wether this is a good or bad thing is of course debatable, but thats SoEs choise. having copid toons would not improve the situation, might even risk to slow it down as overrepeated /bugs takes time to go through.