Dev maked payout only once from ip, the other wallets on the same ip balance will be 0 after one withdraw
As you said only one account per IP.
I manually updated balances to 0 for multiple accounts, when checking their IPs.
i havent problem with this, who care about yellow money, but the site is VERY BAD. 90 % of time errors

A lot of Russian abusing free bitcoins. Unfortunately there is nothing I can do to them.
Also what kind of error? Can you press F12 in chrome? Thanks.
well this the most common one.
500 Internal Server Error
nginx/1.4.6 (Ubuntu)
then a lot of times it times out. No page loads
and lastly it tells me to reload in a few seconds.
I keep trying to reload which leads to the 500 internal server error or the page not loading at all.