I found neither the original article nor any comment here rude. Some are blunter than others, but I didn't find anything that I felt like anyone should be offe

I found neither the original article nor any comment here rude. Some are blunter than others, but I didn't find anything that I felt like anyone should be offended by. He didn't call anyone an idiot, he just said they're wrong. I think calling people wrong is reasonable in the space of web discussion/debate.