A theme topic, whatever often talked about on this forum, is the $5 hammer attack.
Many people suggest to keep your bitcoin holdings secret, thus preserving the anonymity of bitcoin to a certain degree.
But then you get sportsbooks asking for photos and passports, and god only knows what else.
If a sportsbook wants all this, I respectly suggest they change to fiat.
A gambling site asking for KYC is unusual, and i also don't want to play if they require me for that. We should always protect our bitcoin wallet from anyone, we should consider buying hard wallet or any wallet that you can control before its too late. Don't play on any gambling site if you don't feel filing the KYC.