Yeah- there is so much information that is more detailed and accurate to specific situations in almost every area that would be lost to the future.
And you literally never know what weird take on a current situation, or what seemingly small detail of information about a field of knowledge might be important to people, historians, etc., in the future. So much of our knowledge is in our inherent understanding of how the world is right now, that we tend to assume that that knowledge will always be there and available, but that's not necessarily the case.
Anyway. I get deleting, or even removing maybe some of the more frivolous content if possible, ("This" "So much this" somes to mind lol) but I think it's ok to preserve that history.