Those people who give negative reviews in my estimation are the real deal. There are honest negative reviews that is borne out of a need for the casino to improve based on the user experience and there is the one that is borne of hatred meant to bring the casino down. The last one is not good. The first one is like the review which if a casino looks at they can improve on their services.
So the ones that post positive reviews are not the real deal? Really? Generalising like that is just nonsensical to be frank with you. Positive reviews could be real/fake while negative reviews could be real/fake too.
It all comes down to how good you are at identifying which is which and this logic pertains to all parts of life basically.