If you are at 10,000 Euros or 10,000 USD you can expect KYC
a few hundred of either you will likely not have to worry.
Are you thinking of payments of $10k or more, or maybe $10k per month or per year? In any case, there are no rules... as you wrote, above these figures one can expect KYC, but that doesn't necessarily mean it will happen.
I don't know how I didn't see it before, but there is a record of wins from the Betfury wheel. When you load the wheel and before clicking the spin button, there is a small icon on the bottom right, showing recent and all-time wins. Click on that and it will display some information. Among other things, you can see that the biggest win of all time from the wheel was $17 worth of crypto.
i mentioned this before when we were talking about how the 1 BTC prize being close to impossible to win. but i think the wins displayed on the all time big wins tab are only from recent wins, not truly all time wins from the day they added the wheel (i might be wrong tho).
Something is wrong with recent wins & all-time wins... but I'm not sure what. Maybe it's because everyone gets pennies and only a few get an incredible $17... And that 1 BTC is probably something no one will ever get! But it looks good there & we can't stop dreaming about hitting it.