I've read or heard this after every fight of his following the DLH fight with maybe the exception of the Marquez and Guerrero fights.
To humor it however ... If you're suggesting that he'd be part of some shady stuff, just keep in mind his marketability and what keeps people subscribing who don't particularly care for his style is to see if he'll suffer his first L. If he were to, you could argue that many would lose interest except his fans and real fans of the sport, and when you're already making $80 million a fight, why blemish yourself?
If you're suggesting however that a bonehead like a CJ Ross will turn in some ridiculous scorecard though, I can see that. Never know in boxing, but his fights aren't close enough where getting screwed by the majority has a real chance of happening. Plus, if you really want to entertain conspiracies, you'll want to consider Al Haymon's involvement in Floyd's career. He's the one with all the juice.