Usually the user has gotten his winning money from the casino then the user no longer cares about the discussion of the accusation whether it has been resolved or not... The fact is that there are still many users who just leave without changing the title to “resolved”.
The casino has to make sure the user locks all accusations threads he opened against them and mark them as resolved before they let him withdraw his money.
that's a good suggestion and can clear the name of the casino. besides the accusation thread, sometimes there are problematic users who also make reviews and give bad ratings on review websites that include the casino's name.
casinos might be better off doing something like that to limit users who make accusations and then leave their accusations when the case is over without giving a final statement and then locking the thread.
As much as I agree that what the both of you suggested is right, you all should also understand that there is no business that can successfully satisfy all her customers, so, regardless of how reputable a casino is and tries to make sure there are no bad reviews about them any where online, there will always be two or more players that the casino can never satisfy and this ones will always have a negative rating for the casino some where.
So, in the end, it's better for the casino to focus more on offering a very good service for their real and true customers than go about chasing what I call clout, which is trying to make sure there are no bad reviews about them anywhere, which to me is absolutely an impossible goal to achieve.