Rakeback question

Playing on Full Tilt, got set up without a rakeback. I am nearing the point where I have gotten all of my $600 bonus back. I have contacted rakeback sites and been told that I am SOL for getting set-up with rakeback on Full Tilt at this point, HOWEVER they also said that if a family member was to get setup on Full Tilt THEY could get the rakeback.

I guess my questions is what risks are involved with doing this from the FUll Tilt side of things? I realize the risk that I inherit on my side, but they don't matter to me.

Having $200+ dollars raked off my tables daily equates to a whole crap load of rakeback dollars. I hate to leave full tilt to start taking advantage of it, but if need be I will