Here's a question, and I don't mean this in a snarky way at all. It's a genuine question. With all these smart people, why has the experience of google search not improved substantially over the last 10 years? Sure, there's more little geegaws in search now, but the experience of finding what I want hasn't gotten any easier.
What are some of the tasks you've had a bad experience with? I work in Google Search, and we actively try to identify areas that people are having difficulty with and then come up with ways to make their search experience better. Unfortunately, most of the low-hanging fruit has already been picked. If we knew precisely where the pain points were, we'd be much better able to solve them.
It feels like a cheap cop-out for controlling spam: the side effect is that you have heavy hitters like Maholo, Target, etc... all out spamming the more relevant websites.
A more general example of this algorithm problem is that it ranks the pages of Digg, HN, or similar to be higher than the actual website it links to, and most of the times those pages are devoid of any actual content, merely containing a couple of votes and no comments.