As a teenager (probably a bit younger than the average HN reader) there's definitely been a change in how we approach social media. Most kids now take advantage of privacy settings to moderate who can see what messages, often creating private or "fake" accounts that only a few friends can see that contrast with their "public" accounts. Ironically the "fake" accounts are more "real" due to the more honest and realistic posts that they only allow their friends to see. Even in public settings, people are moving away from only showing "perfect" images instead favoring a more realistic image.