I have recently noticed several cases where people edited posts (not mine), by changing some minor 1-2 character spelling issues.
While this in and of itself is probably a good thing (it's well-known that poor wording and spelling errors make stuff much harder to read/comprehend), it is probably at least partially driven by the race for the "Strunk & White" badge. It also strongly points to the editor having OCD (Obsessive-Compulsive Disorder) since they notice the little errors to fix :)
So, I propose a semi-serious "John Emil List" badge (named after a criminal who famously had OCD that contributed to him evading the law for a pretty long while).
The badge would be awarded for extremely high proportion of the edits that amounted to less than 3 character differences, say 50%+ of your edits, for people who have 50+ edits.