The 'scary' side of social media has long been a favourite topic in the mainstream press - and in this case, I think they might have a mild point. I'm sure that 100% HN users are fully aware of the risks of storing personal info online, and will act accordingly - but so many more web users honestly don't have a clue. I've also heard ad agencies and potential employers talking about tracking 4sq users...and I'm not sure I like that either.
Am I overreacting?