The article "The use of confidentiality and anonymity protections as a cover for fraudulent fieldwork data" discusses the problem of research integrity: The need to grant anonymity and confidentiality to interviewees - especially in qualitative research on sensitive topics - may be abused by researchers. Post-publication peer review (PPPR) is a method to reveal malpractices, as Michael Dougherty shows in this paper, analysing a (meanwhile retracted) article with fabricated interview data.