The actual meaning of the advice is to find a physical activity you can tolerate in order to find a mate who isn't fat. It is a way to make their completely reasonable and relatable position on fat people seem like something noble. "My mate and I enjoy hiking. It is our shared interest." The reason I know what I'm saying is true is because every time this discussion comes up, people peddle the shared interest bullshit and inevitably bring up 'physical activity.' And sorry for getting a hair up my ass about it, I just find it crazy when people can't just say what they mean: If you are an average man who prefers a woman with a nice body and you dislike or are unsuccessful on dating apps, try going to a group activity that will filter out fat chicks. The end. Nothing pretending this is anything but another attempt at finding a mate.