I'm married so this is just plain entertainment for me but I think there are some genuine use cases for this on the Tinder side of things. Think about it.
If Tinder knew your preferences and was able to analyze the faces of all the users nearest to you, it could make your feed so much more relevant. In the end, Tinder's success is directly proportional to the number of dates it sets up. Basically, the more "attractive" people you encounter in your feed, the more frequently users will engage with and return to the app. I'm biting off an idea that is too big for me to chew but I imagine huge potential here.