"Thinking" you are addicted or not to gambling would really not help in this case, because being addicted can be described in different ways. Say you have been gambling for fun without putting in your own money, then doing so cannot be considered addiction because you will probably not do it all the time, but it isn't similar when you get in with your capital because the more you lose, the more you will dive in unless you go broke, that's what should be called an addiction.
I agree on what you have said, especially when you have said that this will not help in this case, I mean I don't get what are we going to get in this right? Let's say that we are an addicted on gambling, so what? does this help? NO, I think it would be better if the question would be "
Do you think you are addicted on gambling? If yes, then are you planning to quit?", because in this way, it would make sense more than the other one, and we could give more advice and opinions about it.