They are also making changes to their terms without even notifying the players which makes them somehow violate any terms so casino gets a chance to freeze their funds and block accounts which is why it's advisable to Play over legit casinos only.
I'm not sure what casino you are referring to, but, fwiw, any casino or service provider which changes its terms without notifying its customers should not be trusted. The ToS is a contract between the customer and the service provider. Any changes to this contract must be upon agreement from both parties.
Anyway, I don't know how is this related to duelbits!
Well, I also do not see how the comment is related to duelbits , but let me just chip in this as a both a contribution and also a correction, terms of service is indeed a contract between the casino and their user, but let me state that this contract does not work or function like physically written, documented and signed contract between two companies, or a company and a party .. I decided to point this out because this is how I understood your comment .
Casinos do have the full right to edit , re-edit their tos without consulting the users first ,or getting any approval from them, but then in the end , what they owe their users is to inform them that their tos have changed , or have been adjusted, and also make the newly documented tos available to the users , it is now up to the users to keep using the casino after reading the new terms of service(this automatically means they agree with the new terms ), or stop using the casino (which can also mean that they disagree with the new tos ).