Have you also think about the risk involved making it that public?
Yes, this is another way to catch up the eyes of the hackers to easily starts planning on how to strick on that gambling platform. This is also about a matter of security and privacy they need to protect themselves against any external attacks, the reason why exchange are mostly hacked is because of their openness and the total liquidity they have on the exchange all these also attract hackers, so, for about gambling site they are hardly hacked because they don't know about their bankroll or their worths the only way is just by reputation and how big the gambling site could be.