In the past, gambling with bitcoins (let's say with crypto in general) was still good for a certain degree of anonymity. It seems to have disappeared due to the KYC. Granted, not all sites implement this. But even if you would sign up with only your email address, that is no guarantee that you can gamble anonymously. So I think we can no longer put the notion of anonymity on the scale as an advantage, because that seems to have disappeared. Fast deposits and withdrawals seem to be the most important right now.
Which casino are you talking about precisely MonsterV? Because most of crypto casinos I know don't require KYC (including the one you're promoting) unless you're not a rather big winner. Bitcoins and other cryptos allow players to gamble quietly without being bored by issues with their banks or their state authorities prohibiting gambling at offshore casinos and many games.