All the gambling addicts I knew in real life who claimed to win from casinos all the time had serious mental issues. I went gambling with that guy once, and he ended up blaming me for him loosing at Pai Gow poker, a game that's 100% chance.
And just to let you guys know, ALL the casinos in my jurisdiction say the same things in public advertising campaigns. So far, my sig campaign manager has not PM'ed me telling me to quit bashing gambling. Nobody wins gambling, so lets stop pretending anyone here makes a living gambling online.
As the community manager and signature campaign director for a gambling site, I cannot stress this enough.
I have seen people wager more than they can afford to lose many times and it always leads to ruin - win or lose.
Gambling is for entertainment only, and is not a way to make money quick!
The Gambler's Fallacy is just that - a logical fallacy. You cannot predict a table or a game!
Never wager more than you are willing to lose!