Some forum new members are not familiar with scam accusation format and don't attach enough information on the accusation. Lack of information means it is harder to check and judge that between two sides, the platform and user, who took wrong actions.
If a forum member needs to achieve a fair investigation of his incident, then he should be directly interested in giving the most complete information about his claim for consideration. This is absolutely logical and those who need to resolve the issue will sooner or later realize it themselves, if initially there was no such understanding.
It is not every information that should be shared to the public especially for a case that you are not convinced that casino want to scam you. For the case in question, it is possible the casino is following their procedure in handling the issue and the person involved has not come to the conclusion that he has been scammed so it is still an open case that requires keeping some information out of the public domain. It could actually get the point that he has to released those information, depending on the response he receive from the team.