I think that usually a guy which play games for a long time, risk to became a gambler addicted. Which method you use for stop plaiyng when you understand that you are near to became addicted?
For example, i don't play a lot or for long time (i play games spot during my free time), so i have no idea about, but i trade forex all day and when i had a significant loss i usually turn off my Pc and i go out for a drink , just for not run behind loss.
It is easy to spot a person who is addicted to gambling like you can see him everyday in the gambling place and who can't control himself to play even how much debts he has already.They don't mind how much money they had lose everytime they gamble ,they think that they can get more profit on it.
Identifying online addicted gamblers is kind off tough. I would also say even in person its not that easy either, you may find many pretentious person who are excellent in hiding there addiction. But there action and eyes can indicate there restlessness and thus indicating his addiction. Also you find person who immediately tries to find somebody to get some more money to continue playing.