I said it in the other thread and I'll say it again... If Silva was looking to throw a fight and make some money, he would have thrown the Bonnar fight. The odds are 5x more favourable and Silva wouldn't lose his belt.
The issue with something like this if indeed there is some funny business, is not the fighter wanting to throw the fight, its someone forcing him to throw the fight! A lot of kidnapping in Brazil, countless sports stars family have been taken, Belfort included. So while unlikely it's certainly not beyond reality that there could be a criminal element involved