For example when the commits were made. I would not like to share publicly for the whole world when I have worked with some project of mine. Commits themselves could also contain something that you don't want to share or commit messages.
At least I approach stuff differently depending if I am sharing it with whole world, with myself or with people who I trust.
Scrubbing git history when going from private to public should be seen totally normal.
For me it's quite funny to sometimes read my older commit messages. To each of their own.
But my opinion on this is same as it is with other things that have become tell-tale signs of AI generated content. If something you used to do starts getting questioned as AI generated content, it's better to change that approach if you find it getting labelled as AI generated, offensive.