I think an argument could be made that Pac is doing it as much damage as PBF. He continuosly gets fighters to come down in weight to fight at catchweight insead of taking them on at their natural weight, including winning a 147 belt fighting at 145. He then knocks back the biggest fight in memory due to a few simple blood tests and costs the fans the fight. His actions dent the reputation of the sport because it seems the number 1 fighter in the game is a drug taker. Not good.

Mayweather isnt helping may i add, but i think its drawing a long bow to say that he alone is ruining boxing by himself.