I could care less about faulty grammar. What matters more to me is content. And when I see people who embrace ignorance, arrogance and greed, that makes me mad. The fanatical rooting for a team, despite the evidence of something not really worth rooting for (that team could be anything from sports to politics). And most of all, myopia.... when someone remains so singularly focused on their own personal concerns and can't look beyond to see the bigger picture, how they affect others. That really makes me mad.