Lots of people still think that casinos are back and are not longer against the rules. This is wrong and casinos are still banned. The moderators being replaced by an automatic system is true with the only remaining staff for most hotels being the developers, artists, etc.
Because there are no moderators to deal with the casinos, people made them and are continuing to make them. Some of the staff haven't been making the situation much easier. For example, a staff member from .com (Olsoweir), picked up someone's dices, placed them down as his own and joked about taking bets. This made people think that staff supported casinos.
Macklebee has closed quite a few casinos but obviously because he only closed the room and kicked everyone, the room was just remade. There has only been a total of 2 dealers getting banned since casinos opened again. More preventative measures have also been put in place. The word casino has been banned from being in the room name and also searching casino in the navigator will not produce any valid results. It is also speculated that the dice limit for the room will be lowered to 1 instead of 3. Dice functionality may also be removed completely for a temporary time while a more long term fix is found.