Noviz, could you give me a hint how to implement good anti-duplicate account measure? =) Just keep in mind - this is bitcoin, not credit cards used to fund account.
I know a bit about online security. And running 10 virtual boxes with VPNs set to different IP address seems like an easy solution against any anti-duplicate measure right now. =)
Remember - there are no 100% secure websites. And you can't do it. What you should try to do - make it economically nonsense to exploit "flaws" (just like bitcoins 51% attack - it can be done, but with this amount of power you can get much more legitimate way).
Where I was mistaken - amount of incentive needed to make people try to use this "flaw".
Ok fair enough, I see your point... but what surprised me was that you didn't seem to have put any thought into duplicate user security at all, judging by your previous posts. I suppose the anonymity of bitcoins compared to credit cards is one of the fundamental pitfalls that gambling sites will have to cope with.
But I still think you were abit naive in thinking that no one would try to exploit the flaw
If its there then someone will always exploit it.