The 'public' does not intrinsically have a right to 'know' anything. People got by for hundreds of years trusting one another before google and facebook. Now, after every damned job interview, you've got hiring managers using Google and trying to dig into your personal life, because some blurb you posted 5 years ago about a politician is completely relevant to your job performance, and worth not hiring you over.
FWIW, no this hasn't happened to me, but I'm sure it has to many others. This attitude of Google's is completely self interested. Google isn't interested in the public's right to know, it's Google's right to know, so they can sell ads alongside your private informaiton when someone looks you up. In the end, it's always about money. Fuck Google, use duckduckgo.com instead. It's like Google, but without the creepy.