What you explained is the case of a lousy person attracting everyone to himself on social media, including criminals. This has nothing to do with any company or the KYC completion, so what do you expect? Anything can happen to such a person, even the most worthless criminals may do the operation of locating him or his house and perpetrate the evil easily. What am I trying to establish? The data leaks are minimal and so are their threats compared to how some people take it, and data could be leaked even with the government-secured facilities. Even without KYC, one can be a victim of an organised crime, we should only pray we are not the victim of such a calculated crime.
Sometimes it can be the leak of data from social networks, any type of thing that our data is exposed so that it ends up in the hands of criminals who do not hesitate to take away what belongs to others, then it can be from social networks, casinos, exchanges, where they got the person's data from, but we must start raising awareness because this is delicate, the casinos in general are not to blame, they only comply with the orders to maintain their licenses and permits, however we all know that this is a whim on the part of governments and banks to know who operates with crypto, so does this make sense? In an easy casino you can be hacked, as has also happened in the exchanges, apart from that you have to try to avoid these data exposures, and one way is by not doing the KYC.
That is why I recommend that KYC be fulfilled for those casinos that are really reliable and highly reputable, that offer the security that we deserve, such as stake.com, bitcasino.io, sportsbet.io, Roobet, Duelbtis, among others. casinos that have proven that they are very good, that's what I mean.