As one of those younger users, I still have an account on all of those and still use many. Instagram is from Facebook, Tumblr is from Yahoo which is owned by Verizon. A lot of funny content is taken from TikTok, Tumblr, Instagram, Reddit, Twitter, Facebook and more and reposted over and over through those platforms.

This is directly in response to "As we've seen with myspace, digg, etc., and as we're seeing with tumblr and also facebook now, younger, more tech-savy users have no issues with changing platforms.. from facebook to tumblr to snapchat to instagram to SomethingNew(TM)."