Some of them were even directly blaming the community for judging a case without knowing the inner information.
It's hard to make proper judgement if there is limited information shared by the accused.
Maybe what the sportsbook representatives can do is to try to use independent arbitrators of their choice to solve such disputes if they can not share sensitive information with the community.
A user having over half a dozen scam accusations against different casinos in just that short period of time definitely raises some flags.