From TFA: "the people vs things dimension is a continuous scale, but in our analyses we only used categories that are predominantly one or the other. All things

From TFA: "the people vs things dimension is a continuous scale, but in our analyses we only used categories that are predominantly one or the other. All things-oriented jobs have a clear technical component, ranging from locomotive engine driver to astronomer and all people-oriented jobs have a clear component of providing help to individuals." It also identified "face to face interactions" as a requirement for being people-oriented. So dating app developer is clearly not included.