winner here. It's been a couple of weeks since I got an email response, and they still haven't paid out the 5btc
Technically these aren't winnings, just a return of my previous deposits, since I'm still a net loser on the site. I signed up last year before they had any kyc policy against americans. I got my deposit back the last 2 times I accidentally signed up for one of those regulated no-americans casinos.