I don't know if this is a scam or not, but I am suggesting everyone to watch and don't use this 7slotz casino website!
This website is using exact same template like other scam websites, they have exact same Privacy policy, Terms of use and Proven Fair claims.
Do your own research.
That's good indeed to alert the community, I have seen it in the past too and indeed you're right, we have to do some research to use it. First registration gets a bonus of 100 coins which if converted into bitcoin is around 0.002 btc, quite large for a free trial but it maybe a demo account as the community says. Yes I better watch too.