To the other game with built in parsing. It was convenient when you wanted to make X player level mage or shaman and dump hunter. Now that I am older I think that was kind of a jerk move. But it helped clear stuff. It seemed that most statics clearing raids in a consistent manner used it to dump weak classes. Because most statics in the past were people you knew or had taken through older content to gauge skill level.

To the why it isn't in the game. A recent and good example, ask the feast players if they can chat in game. SE does not or can not moderate this game to the scale needed. So they find other solutions. If players can't be trusted to use basic communication (per SE current system), how do you expect them to use a tool like a parse.