>Maybe, but maybe you're increasing its value to others. Most serious users don't use hashes anyway, they use something fuzzier (OTOH, they usually don't check the metadata either).

Possible relevant example: the duplicate image checks on *chan boards will be fooled. If everyone uses systems like these (and chan users have a lot of potential use for them, but will use individual descriptions) duplicate image checks will stop working completely. : (

Also, random question: If I wanted to transfer an entire conventional library into my computer, would I need metadata at all in order to retain the order/hierarchy?