Agree to that, doing trash talks creates attentions and that's how PPV wanted to cover,
if interest comes up from the viewers it will generate more money for both the providers and the boxers, knowing that they've got decent
shared profits every fight that promoters covered the fight. You need to build your name and create good attentions that not exempt even champions to do that to collect bigger paychecks.
But he needs to back up those talks if he cannot back it up and ends up getting knocked out, it will be a big embarrassment for him and we will become featured on many videos who about people bragging that cannot back it up, he will end up another Thurman who just embarrassed himself by too much thrash talks.