[m3rc]

I don't think you've provided any real evidence that it was specifically the design and UI that sold people on the app. I started using Snapchat right around their peak demo, 17/18, and I remember jumping on board because it was letting me do something other social media apps weren't, not because it was hard to use. The ephemeral nature of the content was exactly what I and my peers looked for in a landscape dominated by public-persona builders like Facebook, we didn't gravitate towards it because of the design.

You forget in your arguments about 'network' that literally every teenager uses the thing. There is no exclusivity, no special bond between users. Your entire high school would be plugged into the app.