Your killer app could be a simple FB quiz. People give you their FB/insta and you spit out what looks that they'd think are wicked sick. Ideally culled from Instagram.
This web page sounds like nerds talking about fashion rather than fashionistas. I'm fairly sure that the Kardashians can't spell ontology.
Edit: Also why isn't this app hooking into the hauling subculture? This would totes perfect for folks and YTers planning hauls.