I never tried to multi account or cheat casinos/bookies in any way and I would never willingly submit to KYC on any of those sites. I don't trust them how they store my data and I don't want to be a victim of another leaked/sold database. Still getting shitloads of spam emails because I believed ledger is reputable enough to leave them real mail address. Of course if I managed to hit 10k from Majestic 7, I would risk it and pass KYC.

I am actually one who reads T&C before playing on bookies and I must say they are all more or less copy paste from one to another. They all have a bunch of ambiguous statements like "random KYC" or "selective KYC". Basically nobody asks for KYC but can hit you at any time they decide to do so. This is not fair to the customers but it is industry standard at the moment and we have to live with it. In the end it all comes down to how much particular bookie triggers clauses like that. I have personally used Sportsbet and Stake a lot; Fortune Jack, Nitrogen, Betnomi and wbet 7 in moderate amount and withdrew money from all those bookies without being asked for KYC on any of them. Good rule of thumb for me is to read fine print requirements for withdrawing bonuses and free bets, in my experience that really shows how the bookie treats their customers in the end.

I like most what Stake is doing regarding KYC. They have bonuses for regular users and they are giving double bonuses to users that pass KYC. For me that is a good compromise to painlessly collect KYC data from most users. Don't have inside info to know if it actually gives results but i like to think that it would be my approach if I owned a bookie and wanted to keep tabs on my customers.