/fa/ is the fashion image-board on 4chan. The board is dedicated to fashion-related discussion; as a result, it is also the destination for users who seek fashion advice.
Fashion is no substitute for fitness: you can't disguise being out of shape. If you want to be fashionable, being in great shape is essential. But this doesn't mean that you can't learn about fashion. Entry-level fashion can help those who are out of shape improve the way they are seen by others by looking more well put-together and more self-aware.