the author commented much better, so I will quote here part of her entry:
Some fat people do live terrible, unfulfilling, limited lives, and in some cases it may be because they're fat—or because they've got shame, anxiety, and/or rigidly self-imposed boundaries in response to endemic cultural fat hatred. I do not want to disappear those experiences. But those experiences are not, as the above advert (and the similar Realize advert) would have us believe, universal among fat people.
I have known real love and real fear (don't even get me started on romanticizing fear as an experience all humans should have); I have gone skinny-dipping in Lake Michigan (and I've no interest in walking naked in the winter snow, but my fat wouldn't stop me if I did); I have fucked a stranger; blah blah blah. I can also tie my own shoes.
I've also traveled to other continents, lived in another country, ridden roller coasters, gone horseback riding, hiked through the Highlands, been rollerskating and bowling and golfing and rockclimbing and biking, gotten married, gotten divorced, gotten married again, had personal and professional achievements, had personal and professional failures, made friends, lost touch with friends, learned how to cook and tapdance and play piano and milk a cow, played endless video games, wrote a book, rode an elephant, went to prom, went to university, went to Niagra Falls, went to a taping of the Drew Carey Show (don't ask), went to Disneyland, went to Disney World, went to Sesame Place, went up in the Statue of Liberty, went up in the Arch, threw up in a brewery in St. Louis, pet a giraffe, bought a house, sold a house, bought another house, struggled financially, splurged stupidly, acquired a disability unrelated to my fat, and a second, visited 44 of the 50 states, watched a calf being born, saw The Matrix: Reloaded in IMAX from the first goddamn row, attended hundreds of rock concerts, got drunk, got high, got sick, got knocked down, got back up again, and flown a kite. That's not a definitive list. Still. All these things I have done, often in the company of other fat people—and I am a fat person.