With what I gave noticed, not all are scam. There is a site that copy another gambling site source code but with little differences, it is a local casino. In the neighboring country, I noticed a gambling site also copy the source code and it is also a legit site. I do make further research, they are all gambling sites that are registered and regulated and they are fiat casino. Later the casino they copy change the interface of his own gambling site. But a cloned gambling site is likely to be a scam.