Some funders and publishers call it unethical, for others, it’s par for the course.
Why do some other funders and scholarly publishers still allow researchers to suggest reviewers to evaluate their work?
The US National Science Foundation and the UK Research and Innovation — Britain’s central research funder — are among those who still consider recommended reviewers, even though the evidence is clear that using these referees leaves the process open to bias and misconduct.
Between 2012 and 2016, more than 500 papers were retracted for compromised, rigged, or faked peer review. This was largely due to authors giving fake email addresses for real experts or fabricating experts entirely when suggesting who would be fit to evaluate their work.