The casinos have their own security of determining the cheating players. I don't know what kind of software they use but they won't just create a casino that's going to be cheated by some random poker players.
They invest huge money into their entire security to avoid and kick those kind of players.
It will depend on the game, and if we are talking about poker, there are plenty of arguments why poker sites actually want to have bots running, so counting on them to eliminate it from the game is probably not the best idea.