Carefulness is very important as a gambler so that we are not going to end up losing big to casinos on the way we choose to bet.
I like using bonus to bet on casinos and making some good amount of profits since I always do make loses with my money that is why any bonus spinning I get used to give me good profits.
The discussion is not about carefulness in gambling or related to that at all, op is asking that if you do not stake any money on a game you are playing, maybe you and your friends are playing a card game, and you guys did not stake any money, would you still consider that as a gambling?
I want to believe you did not even read the op before making this comment, as I see it to be totally off topic, your comment can easily get deleted by the mod if reported, I will just advice you to always read the op before making a comment, so that you don't go making comments that is totally off topic from what is being discussed.