Don't you think that the casino doesn't want to take their profit? Usually, they have 1% house edge, and I think that is fine for gamblers to play in their site. As long as the site is very recommended and the site is legit, I think the gamblers don't have any complaint except the site doing a cheat for their members. But for the trusty gambling site, they won't cheat their members because they will think that their members an assets to them to make a profit.