No it's not- go look at destinedjagold's response to the criticism on the thread. He took it in stride, and hopefully his next hack will be better off for it. And even if it were to upset people, I think it's more important that people be able to point out the flaws in other things so everyone can improve than to have an environment where nobody ever voices anything when they're disappointed by something.
Also, speaking personally as a hacker myself, I would infinitely prefer it if someone furiously exploded at my own work with a list of grievances than to ignore it, as negative feedback is far more useful than no feedback, even if it's a bit unpleasant at times.
"So two n00bish people made LoG thread into another LP...?
Seriously... don't like it? Don't play it, don't write it.
Have your opinion and leave it in your mind."
So if I understand this right, we're not allowed to criticize anything ever? Everything should either be praised or ignored, and never given any feedback on what it does poorly? That sounds to me like a good way to wind up with a heap of mediocrity.