Hi Stunna! Thanks for the reply.
You're right, the post excludes dice sites.
For other casinos, however, there is no amount of randomization that the player can do to prevent the attack. Even entering their own seed won't help. The optimized shuffle will win more often than expected.
Very true, with normal online casinos I think this usually isn't as much of a threat as a 5-15% edge will simply rake in tons of profit for the owners. But with many bitcoin casinos the operator can claim an ultra low edge to drag in volume but the actual edge would be multiple times that if they aren't playing fair.
Another important threat in the bitcoin space is investment based sites, there's absolutely no way to know if the owners will play against the house and steal from investors in an undetectable manner. It's this type of theft along with what you outlined in your post that are major threats to this community because the sites that do this will never get caught. I'm sure many of us have known people in real life who we could trust in a room with a million dollars and a video camera and they wouldn't touch a single bill, but when you remove the camera from the equation you'd often get a different result.