On your service I received 1,5 BTC in day. 1,5*0,2=0,3 BTC in day. 47/0,3=157 days. About 5 months. And considering that in a way new BFL that quicker than 5 months.
Or you accept option of others more? Which simply keep silent!
So wat I gathered is that thieftaly B took the BTC he stole from Inaba and bought himself a BFL FPGA?