Once you see that an answer is not serving its question properly anymore, it should be tossed away. It's just their natural life cycle.
They usually kick and scream, raising one hell of a ruckus when we ask them to leave. Especially when they have been with us for a long time.
You see, too many actions have been based on those answers. Too much work and energy invested on them. They feel so important, so full of themselves. They will answer to no one. Not even to their initial question!
The hardest thing about customer interviews is knowing where to dig. An effective interview is more like a friendly interrogation. We don’t want to learn what customers think about the product, or what they like or dislike — we want to know what happened and how they chose... To get those answers we can’t just ask surface questions, we have to keep digging back behind the answers to find out what really happened.
Glass looks and feels perfectly tailored to my photo sharing needs and expectations. For me it’s even better than pre-Facebook Instagram in the sense that it pushes me to select and share what I think are good photos (same as it happens with Flickr), rather than making me obsess with getting ‘the Instagram shot’ at all costs every day or multiple times in a day. It doesn’t cheapen photography like Instagram has done for years.
That’s why I hope Glass’s founders/developers will resist feature creep. Resist user objections like: I don’t think Glass is offering that much for the subscription price they’re asking. There are a lot of people who will gladly pay for having a cleaner, simpler, focused experience.