One of the reason why we keep seeing gamblers abusing casinos terms of service is due to benefits like free, high bonuses and contest. If some gamblers can stay off being greedy, it will help casinos to spend time and money on something useful.
They think they can trick casinos and get more bonuses. They forget that the casino is the owner and will see what all of their members do. If gamblers can see this and realize that they don't have to do that, they will not abuse the system and will just play gambling like others.
It is important avoiding and not abuse casinos because they will know sooner or later. There are no benefits for us in the long term because once casino know, they will ban us and we can return to their casino.