I'm not sure how this makes HN different from anywhere else. I can think of many sites where someone responds to a story quickly with a well-written, politically charged opinion. What's so special about that?
Not to say I'm above doing the same thing, but it's nothing special. :)
In any case, passing by pointers is more time efficient than argument copying.
Reasonable people can (and do) disagree on the net impact of minimum wage laws when considering it as a thought exercise.
Again, I'm not bashing you for this. But the idea that someone with the same political leaning as you comes up and says, "Yes! This person says what I believe succinctly, therefore HN is greater than other sites!!!!1!" is not sound.