Colleagues, Presented without comment, but it is likely some of you may find this interesting. Rotten Apples or Bad Harvest? What We Are Measuring When We Are Measuring Abuse SAMANEH TAJALIZADEHKHOOB, Delft University of Technology RAINER BÖHME, Innsbruck University CARLOS GAÑÁN, Delft University of Technology MACIEJ KORCZYNSKI ´ , Delft University of Technology MICHEL VAN EETEN, Delft University of Technology https://arxiv.org/pdf/1702.01624.pdf Brian