I'm 22 and also tech savvy, but I find it quite simple to use. I think the target users are those that have pinch-to-zoom interfaces as kids (the today's teens), so the UX is meant to be "cool" instead of intuitive.

Another thing I've seen quite a lot is that you need to invest some time and have lots of friends already using the platform to know about the hidden gems, which I think the app itself promotes that behavior of friends sharing their knowledge instead of easy to use UI (not saying I think it's a good thing)