TheMadScientist - 5:40 pm on Mar 2, 2011 (gmt 0)
I guess they missed the linked threads:
Depending on Google has hurt businesses since at least 2002 [webmasterworld.com]
How many business are there (even large) who depend on Google to stay in business?
I think one take-away from this change and situation for the webmaster is: If fairly large businesses can't (shouldn't) rely on Google for their business, it probably stands to reason you Definitely Shouldn't.
Let me rephrase: You probably don't have the resources or traffic of some of the large companies struggling because of the change, so it seems to be Really Poor Planning for the independent webmaster to even think about basing their future and livelihood on Google alone.
I'm not saying to stop building sites, but I'm definitely saying Diversify Traffic Sources and be smart about it. Run it like a business, not a website or don't depend on it for a living, and learn from the mistakes others have made.