If praise is accompanied by eye-rolling or starts with the word 'ooooh', it's probably sarcastic. But is ooooh really a word? That aside, Onion, this is the best reporting on pragmatics ever done on pragmatics.
In a recent comment, "Monica" asked why the horoscopes in the Onion had gone downhill so badly of late. I think they're just putting their energies into the video news.