You already know there are no positive outcomes for this situation and it has the potential to be a disaster for anyone you try to involve in this. Every single site has a policy of one account per person for a reason and it is definitely one of the worst conditions of service you can break from the casinos perspective. The only possible reason you could have for doing this is that you're trying to circumvent some sort of restriction that they have placed for a specific reason - either betting limits, promotional offers or some sort of arbitrage angle. That means you are gaining an unfair advantage of both the casino and other participants, which cost other people money for your benefit. This is a game that will not end well for you, so better to get such ideas out of your mind.