Instead of just accusing that journal of being a paper mill and summarily blocking it, we look for face saving way of filtering papers. Because in science it's

Instead of just accusing that journal of being a paper mill and summarily blocking it, we look for face saving way of filtering papers. Because in science it's totally forbidden to accuse someone of deliberate fraud. You always must find a face saving way for the authors when dismissing their paper, like "bad statistics are being used".