Speculating that an attractive (hot) girl is likely to be high maintenance or annoying is a generalization that is far from accurate.
It's like saying an ugly man is stupid or below normal intelligence.
Babes reflect the way they are/have been treated and approached by men. It has nothing to do with anything else.
Sure some hot chicks are trouble or a nuisance, but so are a lot of the robbers dogs out there.
Chicks that are hot, ugly, fat, bewilderbeasts, glamours.... They can all smell a dog a mile away, it's their choice if they hang around waiting to get bitten.
The opinion regarding hot chicks most likely stems from hot chicks that are young and immature, or simply acting their age.