If there is such a board then you can see a scam casino with highest reviews because its very easy to create thousands of accounts by a single person to manipulate the results and with the help of Ai tools it can be constructive too, so its not really a way to push the gambling sites to make changes in their policies but we do have accusation board where with all the solid evidence there will be strong voices coming even if the casino is highly reputed by DT community.
What you are saying is true, although there is nothing wrong with what the op is saying, but as most people here say, it is better if there is nothing. What if we don't even find a way to find out if a casino is legitimate or not.
It seems that outside and before we are just making excuses that someone else will work instead of us doing something like this.
