I'm currently going through a particular user's suggested edits, most of which have been accepted by nincompoops, and which do only silly things like code-formatting
arbitrary phrases and adding thanks.
I'm encountering one or two instances in which someone's beaten me to it, but it occurs to me that the editor probably never finds out. As far as he's concerned, almost all his suggestions get accepted so nothing's wrong, right?
If he were notified that an edit were rolled-back (or rolled-over?) then he'd have an opportunity to look at the edit reason and eventually realise that there's probably a reason his 3.514e11 edits are being nuked from orbit and that he should probably stop being such a doofus.
It's a shame we can't trust our reviewers to get this right, but there we go.