Declaration of Competing Interest The authors report no financial or other relationship relevant to the subject of this article. Despite this Dr. Montag mentions that he has received (to Ulm University and earlier University of Bonn) grants from the German Research Foundation (DFG) and the German Federal Ministry for Research and Education. Dr. Montag has performed grant reviews for several agencies; has edited journal sections and articles; has given academic lectures in clinical or scientific venues or companies; and has generated books or book chapters for publishers of mental health texts. For some of these activities he received royalties, but never from the gaming or social media industry. Dr. Montag mentions that he is part of a discussion circle (Digitalität und Verantwortung: https://about.fb.com/de/news/h/gespraechskreis-digitalitaet-und-verantwortung/) debating ethical questions linked to social media, digitalization and society/democracy at Facebook. In this context, he receives no salary for his activities. Dr. Becker has received research grants e.g. from the the German Research Foundation (DFG), the National Natural Science Foundation of China (NSFC), the Science, Innovation and Technology Department of the Sichuan Province, the National Key Research and Development Program of China and the University of Electronic Science and Technology of China.