You know how it is. Lotta fatties on OKC. Your first harbinger of this— I mean, besides everybody knowing that the internet is full of fat chicks, this fact having suffused our popular culture, etc.—your first harbinger of this is the weight class list it makes you pick from, which has like two words for skinny and fifteen different kinds of fat.
Because of course we all know “average” means fat. These eighteen to thirty-five year old L.A. girls are generously assorting themselves according to the national average across all age groups. Not the average for eighteen to thirty-five year olds in Los Angeles, California, as a reasonable layman would expect “average” to mean when looking for that age group in this city. These girls are following the letter of the law and not the spirit, like Hasids who string yarn along the telephone wires on their block so they’re technically in an enclosed space and can walk around on the Sabbath. So “average” means fat.