Vegan.Cro is not a ranting lunatic. (I took the words of Peppermint but this post is not specially for her/him).
Even if it’s only a metaphor (used in French as well, and I understood it as you all did), the aggressiveness of Vegan.Cro shows a hyper-sensitivity to the act of killing, to the consciousness of the next death and to the relentlessness after death. Everybody can see the dead body of a horse. Vegan.Cro sees beyond the corpse of a moral being : death given by someone, consciousness of dying, death in suffering and relentlessly after death (imagine the few seconds during which there is no brain death yet).
I know, it's not even a photography, not even a hyper-realistic drawing, just a picture, just a metaphor. That's why after the first few seconds of shock, I didn't feel the need to talk because I understood that Peter really gave his opinion through this metaphor; his purpose was not to shock.
Even if the text would have been written in place of the drawing, I’m sure that Vegan.Cro would have had the same reaction. He needed to shout (and that’s what he did) that he was outraged : his antispeciesist beliefs outweigh the profound meaning of the picture and the vision of death, the ultimate prejudice, outtakes the metaphor. And it was so violent for him that he became aggressive towards David. Aggressive because deeply offended by a post. Aggressiveness that he turned to David in this thread and in this thread only, not elsewhere.
It would be sad if the personality of Vegan.Cro was judged because of a big anger and that he is banned even if his words "Davidt you are full of shit" are not righteous.
Voilà. Parfois on pète les plombs. To freak sometimes can happen to everyone.