They’d have to change the UI in the mobile app to directing people away from its swiping mechanism and into their own profile pages, and then hope that some users made it far enough along that user path to answer the question. High friction, which means a smaller amount of data.
Interfaces On Demand
Matt Hartman
35712

Not necessarily. It seems like it would be quite easy to introduce the notion of swiping for preferences on things other then people. For example just show a picture of skis and instruct the user to swipe to confirm this preference/interest. Would be quite easy to adapt the dominate UX metaphor of Tinder to asking general questions.

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