Who are my friends then? You've got access to my profile, if this is a social network you should be able to find out who my friends are, right?

This website contains no meaningful information about my relationships with other people. And more to the point, the way I use this site is not abnormal; people who leave lots of information about their social relationships on HN seem to be in a minority. You might claim that comments such as these, between you and I, are social interactions. I would counter by saying these are not meaningful social interactions. Don't take this personally but I don't know you and I don't plan on ever knowing you.