I do not believe that casinos will just ban someone because they are winning. They do not care about you winning as long as you are losing in a patterned basis.
They will be suspicious if you continue to win, they are always on the watch on gamblers that they think has unusual activity, you will be exposed if you have ten continuous win in a row, I agree that they do not care about your winning as long as you have a losing pattern also, you cannot make something so obvious.