There's no point to abuse the freebitco.in system because they can easily find out the abusers and freeze their accounts just like that.
Further more, it is against our ethics and morals to cheat on such a legacy gambling website.
We can all play by the rules and have ultimate fun but some people choose to cheat and then complaint for their losses.
I think freebitco.in should display a banner on their website saying abusers accounts will be frozen.
Only then may be some scammers step back from their bad deeds.