2- Do you feel safe giving out your KYC to online crypto-casinos?
My opinion: After the documents are sent, they go through a number of people and online casinos keep changing their staff from time to time and in some case, if a staff member knows my address and in case I am a high-roller I would be in some serious trouble because the staff member can track me and even blackmail me to some extent. I am ok with giving my identity to known sites like bet365 or williamhill but I am still not comfortable verifying myself at a lesser-known crypto casino.
Blackmail you from gambling? is gambling illegal or a crime that you will get blackmailed as long as you are fair and you won it all fair I don't know how you will get blackmailed, I have not read any complaint that high rollers get into that kind of situation and so are traders from exchanges, they are very similar to gambling they have KYC and they also have whales there, but there was no report of getting blackmailed from staff or former staff of exchanges, you are just creating your own ghost.