Thanks to my (non-tech) roommates and sisters, I've been using Snapchat a lot recently.
Yesterday, I downloaded Facebook Poke and had an immediate (and odd) reaction: it was too well-designed.
Snaps are ephemeral, silly, and spontaneous, but Poke's polished UI and thoughtful UX didn't seem to support that behavior. It made me feel like I was doing it wrong.
Related, we've heard that Branch's UI makes some folks feel like they can't post anything that isn't thoughtful and "academic."
Can amazing design actually hinder user behavior in certain contexts?