While every casino in the US displays signage claiming to support "responsible gaming" and claims to have policies in place to stop addicts from gambling, the reality is that if addicts were stopped, all casinos would be closed and bankrupt within a month. No capital-intensive industry could survive if 90% of their revenue suddenly vanished. And with that, we arrive at the truth: casinos are built explicitly for the creation and exploitation of addiction.
This is pretty evil, but it will continue happening as long as politicians can be bought to keep it legal. The only meaningful way to address it is to focus resources on treatment and prevention.
[1] http://www.wsj.com/articles/SB100014240527023046261045791233...
[2] http://www.gamesindustry.biz/articles/2012-12-12-monetizing-...