Who won't get offended to be called as gambling addict? Not everyone want to hear that so I guess I will try to track back my activities if the claims of those people saying that is true. If I figure out that he is right on what he said to me well I might fix things up and correct all the wrong doings I do on my gambling activities, but if I know that I don't gamble that and occasionally I just participate because I'm bored well I might come to the person tell that to me and talk about things so that he also get a clarification on my activities done.
Yeah if you can re-assess yourself and if you really can tell or speak up with your gambling activities, it's better to confront the person who call you addicted, it's a way of clearing everything if you have that attitude or if you have that kind of personalities, no harm but more on clarification about that claim.
But if you don't have that kind of personalities, then let your action speak up with your activities, it's only noticeable if something already exceeds from the usual activities.