Despite what the self-selecting samples of voters on that straw poll suggests, I doubt we’ll hardly see any significant response to the new policy. It won’t even be a blip on Google’s radar screen. I think it is safe to bet that most users of the Google+ service also have Facebook accounts, whether they use them much or not. Facebook and its history of data privacy (or lack thereof) is not exactly a benign alternative to anything Google offers. I can not see people stop using Youtube, cut themselves off from their Gmail accounts and switching to what, Yahoo or Bing for web searches? The fact remains, Google may not live up to its “do no evil” credo at all times or forever, but most of us have even less confidence in companies like Facebook or Microsoft.
Google’s move is all about more clicks, i.e. more advertising revenue, which is their life blood. If they can show better targeted ads on web searches based on what you write about in Gmail or watch on Youtube, that’s more clicks that their advertisers pay for.
What worries me is if their data gets opened to the NSA, police, etc especially under the loose rules of something like the Patriot’s Act. Inside the US the constitution has been eroded further and further over the years, while its protections have never applied to most fellow humans who do not happen to be US citizens, as far as the US government is concerned. That is not a problem specific to Google latest move though. It’s something that ultimately only US voters can solve.