I agree they can be light on content and oversimplify things to appeal to a broader audience, but they're usually still a pretty good starting point for decent discussions.
That's a fair point, but a balance needs to be struck, at times it seems like every other article is from a large circulation newspaper or magazine and if that trend continues it could spoil HN.
But we can all see this window on the mainstream; where HN is special is finding those whom have synthezised a clearer or more thought provoking picture of the mainstream either through direct experience or a unique perspective.
I think the distinction is between hacks and hackers. They may provoke discussion and grab attention but its just the previous media's generation's form of flaming on an industrialized scale, these articles are without the kind of integrity you get from the truly engaged and first hand experience that HN is so good at fishing out.