This is something I don't get. If these bookmakers are going to suspend or restrict my account in the case of profiting too much, why should I even bother with sports betting in the first place? What's the point? Having fun while losing money?
Which leads me to the question, are there any reputable bitcoin sports betting exchange sites? And will they suspend/restrict my account too if I profit too much although they won't be affected by my winnings so logically they shouldn't care about it. In fact, since the pool and liqudity get bigger they should even support it. So, is it really the same case with bitcoin exchange sites too so that I should give up betting if I plan on winning in the end?
I don't think that they will do that because sports betting can't be cheated (don't know with casino) and if you win or profit in the long term and you are going to withdraw large sum of money from them, KYC documents are probably the thing they will ask from you. As long as you follow the terms in the TOS, i think you have no problem with them.