Teens are attracted to Twitter, Instagram and Vine. They like these mini social network where they could gain followers by posing interesting tweets or photos or videos. Youtube's top celerity usually started their channels when they were teen (high school, freshman). Certainly getting your channel popular now is harder, so the best way to get attention is either by posting photos or posting a 6-second videos. Vine a…
It feels like the current zeitgeist is not to give a crap about anything older than a few hours. Instagram feels like it's only about about making "now" look cool, hash-tagging it and then forgetting about it. Vine gives you a few seconds of entertainment, about the threshold at when boredom kicks in.
Honestly about 99.999% of the time I never re-read a tweet, look at the same instagram or vine. It's disposable social media. Facebook feels like the exact opposite.