This discussion is not about gambling, it is about investing, but I will use gamblers to make an example.
Using gamblers as an example who start out with just the intention to have fun maybe and then along the line turn into addicted gamblers that gambling begin to affect other areas of their life like their wellbeing like they stop spending on some important things just so they can make money available for gambling. Now talking about investing, I think it is possible to become addicted to investing so much that it begins to affect your wellbeing, like the person stops spending on other important things like good food, good clothes etc. just so they can have more money to invest? Do you consider that kind of addiction dangerous and not good?
Well, everything that you overdo makes you become uncontrollable and undisciplined regardless if your intention is to make you profitable. There is a certain time when to best enter and best exit from the market so we should only focus to that, and not resorting into investing addiction as it’s not healthy anymore. Though investing is a good and profitable mindset, but somehow it could also ruin our life with its life changing mistakes and losses.