Obvious throwaway - this app is fascinating because of its seeming domination of the 'kink' landscape - users move from dedicated forums there to continue chatting and you'll see people's kik names in signatures/tumblr pages all the time.
The continued Asian investment in messaging apps like Snapchat (Alibaba), Kik (Tencent), Hike (Softbank), and Viber (Rakuten) is really interesting and makes sense. Apps like WeChat and QQ are extremely popular in the Asian markets, and they want to also have a foothold in messaging services in Western markets.