KIK is very popular for cam girls and cryptocurrency is becoming increasingly popular in the sex industry. The sex industry is one of the biggest industries in the world and KIK has become a popular app used for cam girls. Just google 'Kik Cam Girls' and this comes up:
https://www.bestusernames.com/kik-girls... this is a much bigger industry then people realize... This has the potential to propel Kin just like the darknet and drug industry helped to propel bitcoin in the early days. I'm not saying that I totally agree with it, but this will help to push its adoption ..Also, Kik and cryptocurrency is anonymous, therefore some people who have hesisated to pay for cam girls in the past becuase of personal information will not have this problem with KiK and Kin...I think that this is going to be huge!.. Nobody is really talking about this because it is taboo, but I am sure that the team at Kik know this which is why they feel so confident about Kin.
What if there isn't that many people interested in the project that you think will be? That niche is very hard to make money on if the person doesn't know the ins and outs of it.