The world is ending!
No really to OP try to post constructively if you do not want to be banned and try reading some of the blue replies they are looking into the damage issues and are saying that some or most of it may be bugs.
So far this has happened every pre expansion patch you need to take a chill pill for a few days not QQ rage quit, if indeed your class is not fixed or a blue post stating that it will be or that you are doing it wrong then go QQ and i'll pat you on the back but in the meanwhile give them time to atleast react before you go nuts.