I don't think we should see any gambling platform as a chance to make money. I think I've been at this site for a really long time and invested a lot of time and bitcoin into it. I won't need to say if I made money or not, the point is, I came here to enjoy myself and despite having some bad stuff happen to my account and balance, I've gotten over it.
Now referring people to make money is something else;)
When there is someone who tells you it is possible to make money on something that is mathematically impossible to make money, you know it is either a great scam or it is just lucky for some people. Right now we have provably fair, that means that casino is not stealing from you, it also means that they are true to their word and make 1% profit as well. What does that tell you? Gamblers has to lose so others can win. Here the house edge is even bigger, it is 5%.
Yes, you can make a profit in the shorter term, it is actually possible to wager 1000 dollars on 2x and win another 1000 and stop and be in profit, that is true. However the longer you play, the bigger chance of losing because eventually that house edge will eat up all your profits and make you lose money.
This is only true if you play with the default settings. An experienced gambler with a good strategy is certainly capable of making a profit.