Yeah the moment I saw that info in the reddit thread I was like "okay I get why people were concerned initially about the git history stuff, but this is several steps too far the fuck is wrong with you". Was sad but not surprised to see the follow-up.
I actually don't think the person who did it even intended it badly, they just did not think at all about the implications. But I could read between the lines as soon as bits of info started surfacing just why the author probably wanted privacy and then to see people just continue...blech.
The people who were portraying it as just "rewriting got history" are burying the lede imo. The author changed the email associated with some past commits, no source code was ever touched. Purely a git metadata change