There are always nay-sayers who mock someone who's made a name for himself. Despite the discrepancies in Bragg's biographical information, there is no denying the accolades he received.
Jack LaLanne, no huckster, credited Bragg with saving his life, because LaLanne's mother took her deathly ill son to one of Bragg's lectures in 1929. LaLanne was talking decades later, about the turning point in his life, when Bragg started him on the road to health. LaLanne lived to age 96, following the diet and exercise advice given him by Bragg, 80 years before.
Bragg was leading jogging teams, and vigorously body surfing in Hawaii, when he died of a head injury from hitting a submerged rock, at 81. This is from well-documented record, attested to by neutral, impartial witnesses. Give him his due. Despite the flakiness in his bio, his achievements were real and countless people continue to reap real benefits from following his advice.