Both my kids do. I'm too old for all that malarkey. I do FB, but mainly to keep in touch with old friends and to find new jokes. I don't even know what a tumblr is.
No, but I've seen things labeled "the ___ side of tik tok" on YouTube. Compilations of different animal tik tok videos or uploads or stories or whatever they're called.
Is that the site were you make a 90 second video of youself standing around swaying your hips back and forth like a pendulum while saying tic-tok tic-tok tic-toke? I stole that joke from cheif Rudy on the Mom TV series. Cheers!