The team of the casino may not be involved in such activity but there are some greedy staff in the company that can do that. We can give benefit of doubts to some reputable platform but you don't know so well what is going on behind the scene.
Staff members are part of team. But, based of the context of your reply, by "team" I suppose you are referring to the casino owners, right?
Hiring staff members is the owners' responsibility. So, if something goes wrong, the owners still bear part of the responsibility.
Besides, there should be some kind of restrictions on who can access sensitive data such as users' private information.
Unfortunately, not all casinos take their users' privacy seriously. I once witne3a case where the live chat agent asked the customer to upload his documents via the chat window!
Yes, by staff, I mean those that the casino hires to run some activities in the casino, such as "customer support." If anything goes wrong, it's definitely the responsibility of the casino owner and his core team.
Regarding the live chat agent asking the customer to upload their information, I have not experienced it at a casino, but I had that same experience with a CEX. After several failed KYCs, I contacted the live chat agent and was asked to upload my details to them.
Didn't experience that scenario since I always go to the right channel performing those KYC process that they asked me to do. And for me its bit weird for being asked to upload it on the chat box since its like I don't feel any safe to do it especially that possibly a lot of people who handle on their support side that can able to see those details. Unlike if we are doing it on right place maybe there are only less people could able to see it(If I'm not wrong with my assumptions here).
But if I experience that situation on CEX then maybe I will not comply to that situation they asked me to do and will transfer to another exchange where everything is fine then can able to do KYC without having any further issues.