Bad optics, no matter how you slice it.
Well actually that's not quite accurate, some didn't look away, they were singing praises. His campaign won a major marketing award in 2008, beating Coke, Nike and Apple:
http://adage.com/article/moy-2008/obama-wins-ad-age-s-market...
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I honestly look at Obama's campaign and I look at it as something that we can all learn from as marketers [...] to see what he's done, to be able to create a social network ...
Jon Fine, marketing and media columnist for BusinessWeek, pointed to Mr. Obama's facility with engaging voters in social-media channels. "It's the fuckin' Web 2.0 thing," he said.
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(Sorry for repeated link, I know it has been posted many times but I think it perfectly illustrates the point well).
People are referencing 2012, not 2008. The data operations of both campaigns were very different.