why is bruce reville booed

Bruce Reville is not actually booed by fans; the sounds that may be mistaken as booing are in fact fans calling out his name enthusiastically as "Bruuuuuuce." This chant has become a popular and positive fan reaction rather than a hostile boo. The confusion arises because of how the chant sounds, but it is meant as a cheer and endorsement from Brisbane Lions supporters at the Gabba and other events where he plays. Some initial misunderstandings have happened, but the general consensus is that the crowd is showing affection and excitement for Reville, not booing him.