How is that even possible? I thought MP handled all the payouts with client-side apps, so how can JPR be skimming 20% from the jackpots?
Would be pretty easy in theory. Send the bet to moneypot as attempting to win 90 BTC, but present it to the user as attempting to win a 72 BTC jackpot. If win, use the tip API to send 18 BTC to an account that collects the fee.
(No idea if that's what they're doing, however)
Actually it's kind of devious. A "smart" casino could make every bet with as minimal house edge as possible, (which would push investors to 3.33x kelly =/) and then use the tip API to send the money to the app. So from the gamblers perspective the house edge would still be 1%, but investors get screwed with negative expected bankroll growth and MP itself would make no commission, but the app would make a significant amount more.
Ryan, this is exactly what is happing. For instance, there was a jackpot winner (NotTardy) last week. On moneypot, the win looks like 95BTC and on JPR's site it is 72 BTC. MoneyPot also shows a tip to JackPotRacer for the remaining 23 BTC. 7 BTC of that was rained to the users on his site, but thats still a huge net profit of 16 BTC.