Old geezer. Was a teacher not an IT person or 'developer'.
Owen Gingerich was a historian of astronomy who did a census of printed early editions of Copernicus' book De revolutionibus. He found a tradition of students copying annotations from teachers readings into their own copies of the book. I recollect that he was able to trace various traditions of commentary each stemming from a well known astronomy teacher.
I suppose that checking early printings of key works looking for annotations is a pretty standard thing to do now.
No love for Erving Goffman here at all?
https://en.wikipedia.org/wiki/The_Presentation_of_Self_in_Ev...
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