I believe not. From a viewpoint of a business, I think casinos accept that there will always be a very small percentage of users who will be long-term winners. BUT as long as they don't "abuse" the service by taking advantage of the rakeback/cashback rewards program by betting exclusively on 99% implied winners, then they won't be banned from the service. All users are expected to play in the casino under the the casino's terms. You either actually play/gamble, or leave. You could also play a game where you could find your own edge, like BlackJack.
I disagree. Why do you think so many casinos limit or outright ban long-term punters? It's because they are a business and they cannot afford to keep them around which makes sense if you think about it.
There are very few gambling sites out there that actually allow long-term winners to continue playing(Pinnacle etc).