I know an "anti nitpicker" who is entirely opposite to that attitude when it comes to their social appearance and perception. One hair on their tie is catastrophic. One publicly searchable webpage that shows a decades old picture of them is an extreme problem that warrants hiring a company to clean up. It's interesting how, in matters that are important to some of these people, seemingly inconsequential and irrelevant details suddenly matter to an extraordinary degree.
The anti nitpicking stance is a byproduct of the extreme overvaluation of social perception. Often these people do not like to look like they have made a mistake. And thus they avoid conflict or paint it as irrelevant in belief that it will save their appearance.