This must be a comedy article, at least judging by the supposedly Belgrade version (" Imam automobil sa dobrom mašinom na unutrašnje sagorjevanje. Krenuo sam u dućan u soliteru. Predmnjevao sam, biće tamo hleba i za mene. Nemam svoje bašče, zato ću da kupim još malo kačkavalja, šargarepu, krtole, spanać, raznog drugog povrća, pečurke i makarone, sve to ću da stavim u šerpu i u svom stanu na drugom spratu ću da skuvam supu od povrća. Prljavo suđe ću da stavim u mašinu za pranje sudova, a onda ću da opeglam veš.") which I attest is not written by anyone living in Belgrade, nor Serbia.

What gives it out is that, although it mainly uses "correct" words, with some obvious slips, makes some pretty obvious gramatical and ortographical errors. I guess that it's written by a Croatian journalist, who obviously can speak, read, and write "Serbian" rather well, but who wrote several things wrongly because he imagined that Serbian uses these distinctive features. I can attest that I understand all words in the "Croatian" version without any help, and that the "Serbian" version sounds closer to what is spoken in Belgrade, but only to an extent (it sounds silly and artificial to my ears).