Ever notice that most people who offer unwanted criticism of your body usually look like the clueless competitor?
And as an amateur MMA fighter, I have to respectfully disagree with the author when he says bodybuilding is the only sport that allows such unqualified people to compete. Don't get me started on how many "independent" fighters are wasting space on local fight cards, who think that they're "the next Kimbo" because they like to punk the nerds at school or drunks at happy hour.
But it's a necessary evil: Every sport deals with this. Baseball has tball leagues, football has flag leagues; etc. The only difference between baseball/football and bodybuilding/MMA is that in the former, the lowest of the low are usually 7 years old when they begin to compete, while most people don't begin competing in the latter until they're at least 18.