For the reason being that the gambling platforms are making use of the crypto coins doesn't make them free from data leak, there is no anonymity with them all, because we give our data to them and they also monitor on every steps we are taking by tracking them within their network, this is all clear that when we make use of a centralized platform, then the issue relating to anonymity should be forgotten, but we cannot admit the fact that all the gambling platforms are being responsible for data leak, not all of them, some can be well trusted not to do so.
Some are not about data leak but inside job. The people inside that gambling platform have other intentions why such data has been transferred to those entities. They have other agenda and can be used with ill intentions. So as much as possible, limit your exposure by selecting the platforms that you will submit your info. As you have no idea where will your data will end up with, you are just left to the fact that you are just hoping that it won't be used in illegal means.
