@inquiline @yetiinabox @hrheingold Yeah! The promise of "perfect history" has always been an illusion of digital media even if some systems get closer than others (e.g., there is no perfect history of Twitter, despite centralization).
Plus, features like the kill file on USENET or bozo filter on The WELL mean that there is no universal user experience to reconstruct.
I am also reminded of @jessogden's work investing what gets saved in web archives, how, and why: https://www.tandfonline.com/doi/full/10.1080/24701475.2021.1985835