There are many things in life that have immense personal value and zero value to nearly everyone else. This creates a lot of misunderstanding and incentive misalignment.
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Well, except future historians who may find value in "personal" information (although I guess we've got such a surfeit of recorded "personal" information these days compared to even just 50 years ago, it may not be quite as useful as when they find, e.g., some Babylonian tablet with a shopping list on. But you never know!)