Anyway, please check the threads about johny1976 (the original dev of Coindice/coinjack/etc..) : https://bitcointalksearch.org/topic/johny1976-coinjackdicewheel-casino-liesscams-920645 (for exemple)
A lot of script owners got their wallets emptied, and with johny missing now it makes me think of some scam to take some BTC from people.
I advise you to be cautious with that script !
yeah what you say is true. people are very good in php can find for the backdoors and fix it.. i know few experts who can fix those bugs. they fixed few backdoors on other scripts for me.
add me in skype mr.blade008