It is Hacker News, not Computer Engineer/Scientist news. It was always supposed to tilt towards Silicon Valley. I don't think that's a good thing, but it's a free service from Y Combinator, so it's very understandable.
Well, since it was pg's idea, I'd guess "hacker" would slant more towards MIT-style hacks than anything to do with the valley.
I think the lack of Vint Cerf stories has more to do with the temporal nature of news than any biases that people might have. I'd chalk it up to him just not making news lately. Any text on the history of the Internet, TCP/IP, and networks in general liberally mentions him.
