phranque - 10:46 am on Mar 19, 2010 (gmt 0)

...we might put out a call for people to report more about link spam in the coming months.

i found this part to be particularly alarming.
you could be generous and call this "crowd-sourcing of search quality" which actually sounds like an admission of failure.
closer to the truth would be to call it "ratting out your competition" which is simply bad karma in my opinion and incentivising snitches leads to unintended consequences.
google should instead strive to identify and reward quality.