We see a lot of this in China, with apps like Papa (like Instagram adding an accompanying audio clip). Most people are tired of reading here and would prefer sound or, now, video (we just got a Vine clone).

With that said, my thought is: why not be able to just press play and stream the experience, allowing me to listen to everything with my friends that day (like a personal podcast)? I haven't installed this app, but the screenshots look like I have to press play on every single one. Vine autoplays, which adds some feeling of this to their service.

Edit: also, congrats on your app!