I think the way to spot a gambler addicted is they are trying to borrow your money to gambling. That surely is a gambler addicted.
As per you people who don't borrow money they are not addicted any of these games or in gambling?
There are many people who are addicted to these gambling games but they won't borrow still, they will play every day these games and lose money that doesn't mean that they are not addicted. They also addicted but somehow they can control themselves by not borrowing money.