why don't they say we won't allow u to play if u can't provide the source of your funds? it is only after u have won and try to withdraw that they get so worried about these things.
I also hate this part of online casinos. Most of the online casino doesn't ask the user to submit these personal documents during registration. But suddenly they apply these terms to some users. I have found at least 30 casinos who reserves the right to ask for the source of funds documents (
see here). I doubt that any casino will consider crypto earnings as source of funds. Casino will ask for the bank statement at least.
You always say it's the same in other casinos when someone is scammed by this casino but what are your proofs? You are discrediting all the crypto gambling industry and misleading other users just because one casino is doing bad things to his customers. I'm sorry but I have never heard one casino locking funds of a customer for a so-called bad source of funds after wagering more than $2.5 millions there and even getting a dedicated VIP host. Why do they only care about that now, if it's so important that they can't give him back his funds? I don't understand. On Freebitcoin for example, you can gamble as much money as you want, deposit and withdraw funds whenever you want and bet on whatever event you want, you will never get your account restricted and you will never be asked one single personal information(even your name) to withdraw your funds. So all casinos are not doing this kind of things obviously. You said that reputable casinos only lock accounts when customers are cheating, but if OP has cheated what his source of funds has to do with it?
No casino will allow you to withdraw always if you don't wager with your deposits. Where you have done it couple of times at Stake (based on your initial post). Every casino will consider it as money laundering activity.
I'm wondering why you are thinking it in this way! No reputable casino will ban your account if you win on your large bets. They will only ban you if you do it by cheating. Stake or any other casino will lock your account if you continuously win on big bets with suspicious activity. They will unlock your account if your winnings are legit.