Overediting is a sin of commission. At its worst, it’s a lobotomy. When an editor overedits, they don’t just remove the bad parts (and may not even achieve that); muscular overediting removes the connective tissue, the weirdness, the specific stylistic tics that make a writer’s work recognizable. Overediting homogenizes, turns perhaps-overcooked steaks into a slurry of grey protein instead. You can fix a typo in a second edition, but you can’t reinject life into a manuscript that has been bled dry by a thousand “clarifying” queries. To say “editing is good” is like saying “medicine is good.” Yes, in the abstract, medicine is a marvel. But if you have a broken leg and the doctor chooses to amputate rather than to just set the bone, the fact that medicine is good in general is cold comfort.