If he is actually somehow related to the casino and its team and is only here to promote the casino this way, it would probably be better for the team to properly announce the platform in the forum and they could possibly get a lot of active users from here.
I believe this website is clearly a scam website because someone already said he try the website with just 10$ and won over 2k$ but when he try to withdraw it they ask to deposit another 500$
many of these scams happen in 2018 and you can see them here
New scam schema on the forum - Free Money To Test Casinos.