At the moment there is none, it is nothing more than a game of "how much information can you get out of me before I grow tired of this toy." Obvious next steps

At the moment there is none, it is nothing more than a game of "how much information can you get out of me before I grow tired of this toy." Obvious next steps would be to use this data to offer you "your friends like/recommend" services at some point where you are making a decision about what to buy or what to do. The first part (what we see now) is easy, getting your service into the decision-making flow for part two is much harder.