Colibri, if you are going to present yourself as an authority of sorts in all things Latin American, I am rather surprised, given your profession, that you’re apparently unaware if the cultural implications of frogs in Puerto Rico. In particular they have two species indigenous to the island that are not only rather famous, but again, form part of Puerto Rican lore. One of them is the “coqui” and one only need visit Pto. Rico to find its image on all sorts of tourist souvenirs and the other is the “sapo concho” which, as you may or may not know, is an endangered species. Thus coquis and sapos are easily identified w/Puertoricans.
In fact, I hadn’t noticed this particular poster until recently but once I saw his peculiar syntax and his user-name – and trust me, no Sherlock I – it wasn’t that difficult to conclude that he was Pto. Rican. So your implications on his user name and what he said are quite nonsensical – granted, I am originally from Spain but probably have as many years as you living in L.A.
BTW, how would you translate this particular American idiom, “butthurt” into Spanish? Because nothing I am coming up with makes any sense – much less thinking of “pulling out a knife over it.” 
Take your pick: “duele-culo” o “culo-duele” neither one is an insult I’ve ever heard in Spanish. If you want to go that route I can see using “a tomar por el culo” or “que te den por el culo”, but AFAIAA, those are actually Spanish/Spain insults, and by and large, we use them more as friendly banter between friends than we do as insults.
Seriously, I honestly think you took this whole thing to a level that was totally unjustified by either the preceding posts not the subsequent actions.
Be a man and retract your bullshit.
OTOH, now that I’ve seen some of Sapo’s posts and followed some links provided to prior petty complaints of his, it does seem like the guy is a busy-body intent on showing that he can “bring down The Man” or whatever Quixotic BS runs through his mind – or worse yet, as you imply (and here I can agree w/you) he is just being a dick and getting into TPTB faces just to get a rise out of all of you while at the same time playing to the gallery.
I guess Warhol’s “ten minutes of fame” can now be interpreted to include the Internet. Fuckin’ retarded if you ask me, but there it is.