Such level of addiction can destroy many lives and such addicts should get rehabilitation as soon as possible. Because if they don't get rehabilitation on time they'll continue to destroy their lives and the lives of their loved ones.
Early signs of addiction can be very taunting in such a way that you if you don't keep doing it you feel you're loosing it all but mind you in the real sense you are doing just that, and sometimes I use to wonder how one would take some huge risks that are not worth taking just to keep up gambling and that's a greater sign of addictions uncontrollable attitudes and sometimes you may be so vulnerable to your self and people around you usually when you don't seem to get a win or you are chasing over losses.. so it's better to detect this signs and learn to control them the earlier the better.