“As a transgression, plagiarism comes with a fully operational stigma attached. Not so with self-plagiarism. It can be forbidden but without the benefit of shame as a reinforcement. I did find it denounced as unethical while reading through some 50-odd articles or papers mentioning it, most of them from scholarly journals. At least as frequent, though, were suggestions that a certain amount of self-plagiarism is inevitable — and perhaps even necessary.” – Inside Higher Education