When this ad came up on my Instagram all the comments were fats saying something akin to, "nice try, but including just one diverse body doesn't make you body positive!"  Exactly.  Catering to them just results in them being more offended.  If you just have smallfats and not deathfats, it's not body-positive/"diverse."  If any of the fat women have a slighltly more favorable body fat distribution, it's not "diverse." If your store sign says "we sell all sizes, from pixie to goddess," Tumblr will throw a temper tantrum, because "what if I want to be a pixie?"