Good point. I don't think the social networking "friends" moniker shouldn't be the same as the word for real "friends". It implies that they are the same. Because I once made a passing remark on your online profile, doesn't make us friends. If this same "friendship threshold" was employed in real life, then the taxi driver that drove you to work, the cashier at your grocery store, and the person you shared an elevator ride with would all be your friends.