Gamblers are telling stories about how they got banned because they are winning too much, I will like to tell you not to believe everything people tell you, these stories typically have another side of the story, there is a high probability that these gamblers have broken some rules along the way.
For reputable casinos, banning players that have won a lot of money legally is bad for their business, the casinos knows that the word of the mouth spreads faster than anything, so I believe that a reputable casino do their strong research before they use their ban hammer.
Before you take sides with gamblers claiming they get banned for winning too much, remember that casinos are good at monitoring and preventing fraudulent behaviors, you break some rules you are out, and no cheater want to admit that they cheat.
It doesn't even make sense when gambler and the underlying platform fight for difference but of course, if there is money involved, evidence must be provided. However, don't understand why the forum casinos don't like to show evidence or proof of what happened, at least it will help the judges(DT in the Forum) to make decisions, if it was the user that is guilty or the casino but they don't provide anything and for that, to remain neutral, I better give my small opinion but wouldn't meddle with what I don't have power over.
As a top tier casino that has used forum ads, they should know better that when in Rome, you have to act like you're in Rome. They should always provide evidence when it's needed and to avoid stories that touch, I don't like some of the casinos we have in this forum, I used the few I trust and hasn't been called out and even when they are called out, they are just minor issues which understanding term are reach to keep reputation for their customers.