For instance:
http://groups.google.com/groups/search?as_q=legitimate+use+o...
I'm sure it's possible to dig up more examples.
It just goes around and around and around. Please leave us our wonderful site for tech and startups and take the politics elsewhere.
I don't think it's a fair comparison.
Politics can directly relate to tech and startups.
In the 2+ years I've been coming to hacker news I don't really feel the subjects have changed, there has always been broader political, economics, education topics on top of tech and startups.