The irony of their deal is that the Bitsler affiliate link is no longer available on the betking website though other casinos that should have known better are still associated with serial scammer Dean Nolan: https://betking.io/
For example a gambling site run signature for 1 year and spent 5 btc for that. But probably he won't get 10K gamblers from here. But by gambling database probably for 2 btc you may reach 100K gamblers inbox directly. This is Dean (Betking) business currency IMHO.
in the end, we can draw a conclusion here that Dean (Betking) made a deal with Bitsler, he gave them part of the gamblers database, where they agreed to compensate the loss of all those below $200 which may be legitimate, but he (Dean) still resells that users database to other casinos. there are no moral barriers here.
I must agree with all words from @JollyGood post. He is a serial scammer
~snip