I served as a reviewer for journal B. I noticed that I already reviewed the same manuscript for journal A. I provided my comments (a couple of pages long) for improvement for journal A. However, the author (s) completely ignored my comments and made no changes to submit to journal B. The manuscript has been rejected by journal A because it does not meet the journal's quality standards.
I reported it to the journal editor and stated that I already reviewed this manuscript for another journal. The author (s) made no changes by reflecting on my comments.
My question is this: Do you think it should be the author’s academic freedom to revise or not to revise before submitting to another journal? Or should it be considered unethical practice? Also, should the manuscript be rejected if it is considered unethical?