I'm one of the people who marvels at how every single website that has comments available inevitably ends in ridiculous arguments. It doesn't happen as often on this site, but it still does happen. For example, every OSU Football video on Youtube has comments that end with SEC/OSU or TSUN/OSU arguments.
I watch the Newsroom - to support Sorkin mostly - and this clip (you can start at 1:43 to just get to the point he will make) brings up a very practical solution to 1) Trolls and 2) the unwarranted comfort of posting hateful/threatening comments. To summarize, if people were forced to display their name, age, occupation, location, etc. I don't think they would be so eager to troll.
Take it for what it's worth. If nothing else I'm hoping for some debate. By the way if it ever becomes required for this site, I will be happy to post my general info.