In this paper we demonstrate how a gamification approach increases the attractiveness of an assessment exercise in the context of expertise profiling. We present an online game, in two difficulty modes, where users have to guess the authors of publications. We analyze the collected data along different dimensions and identify four types of gaming personalities based on behavioral patterns. Further, we examine the relation between popularity and recognizability for both papers and authors. Finally, we provide insights into game mechanics that extend beyond our specific use case.