I think the idea is that you could share pics of your latest furry costume with your 'fur-friends' circle, without your parents or potential employers even knowing that circle exists.
What's even better, is that there is technically nothing stopping Google from keeping your employer from finding all the great ideas you've been giving away on HN, if you've somehow associated your HN account with a circle... unless said employer comes directly to HN, obviously.
What's even better, is that there is technically nothing stopping Google from keeping your employer from finding all the great ideas you've been giving away on HN, if you've somehow associated your HN account with a circle... unless said employer comes directly to HN, obviously.