How is Belfort a cheat? He participates in mma exhibitions under whatever the rules happen to be.
Ask yourself this-why was it ok for Sonnen but not for Belfort?
Vada and wada are drug bluenoses who want to impose their peculiar brand of sports morality and who want to get a piece of mma money.
It can't be denied that mma athletes are in a ped culture that destroys their endocrine systems and who must take exogenous testosterone to maintain minimal function. This is as much about ncaa wrestling drug culture as it might be about brazilian drug culture.
The Ufc has undermined athlete safety by encouraging practices that require ped's-huge weight cuts, heavy fight schedules, and an athletic, shredded look.