How does the site generate revenue if the bids get added to the jackpot?
also, what about double spends. I dont know much about them but this seems like a place the scammers would use the trick.
House margin is 5% (only on the won amount - winning bid is returned entirely). Regarding double spends before paying the jackpot 3 confirmations on all transactions are waited.
That won't work. If I send an transaction in the last 5 minutes, and it hasn't confirmed, but someone else outbids me, I can double spend that transaction, giving me an (almost) risk free chance of winning, and possibly cheating others to force them to make higher bets. Consider adding a policy that the transaction only counts as a valid bid if it confirms before the end time. Will combat sniping, and will also make the game more interesting. Banning addresses won't work. It is easy to mix your coins using exchanges, with little or no fees. I can fully mix my coins, leaving no fees by going My Wallet -> Nitrogensports -> Primedice.com -> Moneypot.com -> Other exchange -> New wallet