HN is full of these types (myself included when something really triggers me). The amount of trivialities/nitpicking/arguing-for-the-sake-of-arguing going on here is enough to try anybody's patience. I think if i were to discuss things face-to-face with some of the people here it may most probably end in screaming/yelling and fisticuffs ;-)
It is a fundamental Human behavioural trait (i.e. the need to assert dominance through any means) that needs careful regulation in our communications.
I try to deal with these people the Sherlock Holmes way ;-)
"It may be that you are not yourself luminous, but you are a conductor of light. Some people without possessing genius have a remarkable power of stimulating it ...
When I said that you stimulated me I meant, to be frank, that in noting your fallacies I was occasionally guided towards the truth.".