Unless I'm missing something from the context, the comment broke at least three: the one against calling names in arguments (e.g. "leech"), the guideline about civility (by going into personal attack), and this one: "Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize."

https://news.ycombinator.com/newsguidelines.html

I'm sorry but that is splitting hairs. The comment used a name but it was not name calling, it was the core of his argument. He was being relatively civil, it's clear from the comment. And are you really going to delete someone's comment because you think it's engaging in a straw man argument? Can't the other commenter defend himself?

Sorry I think you sometimes get too heavy handed around here.