My friend, from your posts it looks like you are new to the game.... or at least online. The common thought process for such individuals is to indulge in such thoughts. But such indulgence is not very pragmatic. You are putting the cart before the horse, although a prepared man will always want to take care of his exit before he makes his entrance.
I will say two things. First, hearsay or words of individuals who do not speak in concrete terms and from the benefit of solid experience, well, such comments you should generally discard. You need to consult with individuals who have the precise experience of being banned or limited with each particular book. Secondly, the best way to protect yourself (in the low % chance that you begin to smack the books around for consistent, large winnings) is to go with the strongest books. Generally speaking, the further you get away from those books, the more problems you will have.
From my own personal experience, YouWager has been the most solid. Their whole process is automated and I have never had one hiccup or problem with them -- EVER! I have heard that if you lose with them, they will blow up your phone. But at this book I am easily up lifetime and I don't get any calls. I have been with other highly reputable books and many times there has been the 'dubious', 'borderline' interpretation of what they are doing when going through the payout process. Although such a thing could be 'considered' legit, it really shouldn't happen. When you start winning, you will know what this means. Or you can read many of the threads available. The reason why I mention this is because that has NEVER, EVER happened to me at YouWager. They pay like champions and not once was I ever hassled.
Good luck.