Fatty, Fatty, Two-By-Four

A dating site for beautiful people has dropped thousands of those looking for love because they gained weight over the holidays. When the registered "beautiful people" posted their new photos, with the extra pounds easy to see, the founder expelled those he called "the fatties."

It's his site, therefore he can do with it what he wants. But I must ask, why would beautiful people need a dating site? Wouldn't they be able to simply walk down the street and potential mates would fall at their feet? If people are using beauty as the only criterion for finding a partner, wouldn't this bunch of gorgeous folks be the first to be chosen and in no need of such an impersonal dating mechanism?

Tell me why this dating site exists. What am I missing here?