I don't know what is the intention of these people who come, post an introduction about the crypto casino, and then disappear. Also, their site is just a piece of crap and they think they will make money out of it. 
For everyone who is planning to build a new casino, do not advertise on this forum unless you are willing to run a casino honestly. No one will play on your casino if it's built to scam people.
The answer very easy - they are cheaters. It explaines everything. They spend 1-2 hours to make site(that`s why it is awful), then creating a thread like this and cope-paste it for different boards. Then create the same site and repeat it all. If even 5-10 men will spent $10 - it will be enough to repeat it again and again.For everyone who is planning to build a new casino, do not advertise on this forum unless you are willing to run a casino honestly. No one will play on your casino if it's built to scam people.