There is nothing going to change if they have your KYC info , except that it is very valuable to them. I think most people don't even understand what can happen with your info when it is in the wrong hands. And that all to get some shitty token for free.
Many people are incapable to understand that one of the most valuable things in the world is information, that is why the governments are doing everything they can to obtain all the information they can about you and the same is true about private businesses, giving your information and your official documents to people in the other side of the world that you do not know and that could possibly be scammers is a huge mistake, they could ask for loans or they could steal your identity, and people that have gone through that say that is a nightmare to recover their identity.