Seems to be essentially a "Hot or Not" type app, essentially CommandShift3 but back to using people. My first thought is what incentive is there to participate

Seems to be essentially a "Hot or Not" type app, essentially CommandShift3 but back to using people. My first thought is what incentive is there to participate? I guess those that submit pictures get bragging rights, which may be enough for some, but I see no motive for people to vote.