True about there being many topics already about gambling addiction. There is always concern about gambling addictions and every gambler has a way of expressing themselves. Topics about gambling addiction will always be raised unless there is a specific thread were people concerned know where to take their discussion to. Addiction is a major challenge facing gambling and as long as gambling is a topic, addiction to it will always be addressed as well as ways to reduce the number of people who are already addicted.
Not all of those topics are necessary as that most likely just allows for more repeat posts leading to the same discussion. Gambling addiction is a consequence of any gambler, but the degree of addiction of gamblers differs. There are some cases that can be handled easily, while some other cases require extra severe handling. Even some addicts become incurable when they cross the line of compulsive gambler.
Even though not all topics discuss the same level of addiction, if the topic is moderated in one topic (not allowing other topics to exist) then cases of addiction at any level can be discussed there.