The problem is that this revision will override all the previous ones in the “blame” output so it needs to be explicitly ignored. See a great link elsewhere in the thread on how to deal with that in newer versions of git.
My point was that the user doesn't matter (vs. anything else about the commit) to me in any context that I see it.
And then I mentioned without reiterating the advice about hiding the commit from blame just as you did.
In any context where I see "OJFord committed 'Autoformat with black'" for this, it's not 'OJFord' that's the problem IMO.