Katja Rost and Bruno S. Frey address an important topic. They compare two kinds of rankings, a conventional allegedly "quantitative“ publication ranking, and a ranking based on the membership on editorial boards of academic journals, which they call "qualitative“. They find that the relation between the two rankings is not linear, but inversely u-shaped. Consequently, they argue that maximizing publication rankings may lead to a decline in research quality. Therefore, basing promotion decisions solely on publication rankings could be counterproductive for science and hence should be avoided.