I for one have never shied away from a "hot headed" argument. Imho, I feel that as adults it is our responsibility to voice our opinions even in times when that opinion will contrast with another. In fact, sometimes it is crucial to do so as often times the most important arguments to be had are the most heated.

I believe the HN esk counter-point would be that HN is not the proper forum for those kinds of discussion. Imho, there is no "proper" forum for these kinds of discussions. They simply need to be had, more now than ever in my lifetime, on every street corner, and in every shop.