As Hajduk said, the focus isn't her weight, the weight is just the tool LOD is using to attack the person.

When delivering personal attacks, it's effective to pick something that the person is likely to be sensitive to. It doesn't mean you hate people who posses that trait, it means you're attacking that particular person's weak point. Don't take things personally when they aren't directed at you. This kind of misunderstanding of personal attacks has proven to be quite a problem in recent days. An attack on a trait is usually not an attack on the trait itself, but a specific person possessing the trait. The weak spot in the armor.