Tapatalk thing. I think they were going to let you be able to spend the kin but that's not available yet
I read an article last night that said the original kin was like a bit coin currencyIt's annoying. I know that much.
Every time i like a post, it pops up, i click "do not show again" and it still pops up every time.
I assumed it was tapatalks version of reddit coins.