I read the entry in the FAQ, but that only mentions obvious things such as "abusive, off-topic, or inappropriate content." What about the gray areas?
I mention this because my recent question: In the book/movie Sphere, why was the space craft built with aerodynamics? attracted a person who appears to be quite passonate about their response. In the comments on his answer there appears to be an escalating argument about the merits of his answer.
But what I actually find inapproroate is that on the main question he suggests that I have selected the wrong answer, and that I should choose his. I referred him to this meta question/answer: What happens to an obviously correct answer that is never marked (and no other answer is marked)?. But I'm wondering if his comment should be flagged as inappropriate, so that he learns not to be so aggressive.