By posting the second picture I would assume he was just looking to offend people intentionally and would have unfollowed him without a word. People will do what they do, and as long as it was done humanely I suppose there's nothing wrong with that, but I don't see why rubbing those things in other people's faces should be acceptable practice.
As for feeding fairly expensive morphs, I don't understand that either. Sounds like he just wanted to increase the shock value of the pictures.