> Why would it matter? If you're using it, you already don't care where you're getting the paper from, only that you're getting it. How can you exclude that ca

> Why would it matter? If you're using it, you already don't care where you're getting the paper from, only that you're getting it. How can you exclude that case that Alice does care where she gets the paper from, but she simply cannot afford it from the original source? Or how can you exclude the possibility that Alice wants a version of the paper that does not embed a watermark that makes her or at least the setting (e.g. university, IP address) that she downloaded the paper from identifiable. I can witness myself that Elsevier embeds such information into paper downloads.