You know, maybe bullying isn't so bad. Used to be people kept shit like this to themselves, because they knew what would happen to them otherwise.
I don't care if this is a joke or not, this is NOT a comment you should be making ever. Bullying is a serious thing, and to justify it, even jokingly, in the way you did is just plain mean spirited.
If you want to make fun of a picture like that...whatever, do so, I won't necessarily agree with it, but to facetiously endorse bullying? No, that's overstepping your boundaries.