I'd say "potential" is being charitable at this point. We're now in a world where prospective employers have been demanding access to candidates' social network profiles. We're now in a world where national governments seriously propose requiring anyone visiting their country to disclose all of their social network profiles in advance. Privacy-minded individuals have objected strongly to these kinds of practices, not least because of the inferences that might be drawn if someone didn't provide such details (honestly or otherwise).