The media stir up a lot of this by showing pictures of someone who is obviously overweight and with a headline (paraphrasing) "she moves around with her toned body", knowing people are going to comment against the persons weight.
I found the opposite to be quite amusing, a few years ago I used to troll the Daily Fail comments, if there was a particularly voluptuous model featured in one of their pieces I'd make sure to comment about them being a "plus-sized" model, it would drive the readers mad and generate a bunch of replies...
![Big Grin :D :D](/styles/default/xenforo/vbSmilies/Normal/biggrin.gif)