I think that say what you will about the social media and the ills of it, Tinder is definitely a net positive for society. This is because matching on Tinder removes the ambiguity of attraction from the whole confusing dance of social interaction. So in the long run, when Tinder and its clones take over, there should be much less stories about unwanted sexual attention: either you make it on Tinder or you do not make it at all.