It is not a matter of what if fair and unfair.
It is a matter of what is legal and illegal!!
It is illegal for ANY website to miscode VISA/MASTERCARD transactions. They do these to for several reasons. To get around gambling blocks that people have put on their bank accounts, to make it appear to that the payments do not involve a high risk listed business (gambling) and to pay less money to the card companies as it isn't a high risk company they are putting their payments through.
As for saying that is is a no risk game for the person playing catch yourself on. These unscrupulous casinos are "targeting" known disordered gamblers and are nothing better that drug dealers. The deposits they take are taken illegally and of course they should be forced to pay them back and shut down. Any casino miscoding transactions can't go crying to Casino Guru when they get charged back and similarly you can't have a go at the customer for doing so as after all it is the casino breaking the law!!
"I realise you are always going to defend the casinos but defending these illegal practices is disgusting.
Once you lose, you just claim all deposits back. In that case, you could only win, but you'd actually never lose your deposits. I guess you clearly understand that if casinos tolerated this, they'd be all shut down pretty soon."
Maybe if more people that did this (charged back miscoded transactions) then the casinos would realise it wasn't worth it and stop their illegal practices. If they continue to operate illegally they should be shut down should they not?