That would create a bureaucratic nightmare for no significant gain.

Edit: see https://news.ycombinator.com/item?id=39234189 for a longer answer; and also krapp's comment at https://news.ycombinator.com/item?id=39232795, which makes a similar point.

That would create one more thing for people here to complain about. People here would just accuse the mods of faking the mod log to hide their "real agenda" whatever that is.

Just enable showdead if you want to see all of that. It's 99% botspam.

Wikipedia can and does vaporize edits.