This letter profoundly missed the point. Codes of conduct in peer review still enable critical feedback. It just means instead of saying “how could the authors be so stupid as to not know ____” you say “have the authors considered the possibility that ___”
The advice here is: don't feel compelled to play nice or give constructive comments. "Reviewers volunteer their time to judge the validity of a paper as a favour to the scientific community, not to the authors." - thoughts?
Don’t pull punches in peer review [Interesting view on peer review?]
(presumably an) unpopular take on science peer-review: "Reviewers volunteer their time to judge the validity of a paper as a favour to the scientific community, not to the authors." I don't wholly disagree, but very interested in others' thoughts.
Don’t pull punches in peer review (letter to the editor in Nature; I see what the writer intends, but ... well ...)