A recent topic at SBR Forum asked the question 'which sportsbooks do not require so much verification'?
The player was not keen on providing personally identifying information because he intended to deposit through bitcoin or cash and was unwilling to fork over his sensitive information.
Players should still expect to have to send their ID or proof of address regardless of deposit method. Even at bitcoin exclusive betting sites, players suspected of circumventing limits or violating a previous account restriction should expect to have to confirm their identity. Ultimately it is for the good of the sports betting industry and the regular honest players to have these measures in place.
In addition, online sportsbooks must perform what is known as Know Your Customer (KYC) or AML (anti money laundering) checks to maintain compliance with gaming regulators.