Great question. The answer may boil down to the way my memory works. I work in research, so I'm constantly reading and citing papers and studies for lit reviews, general understanding, making sure no one else has done the project I just thought up in the shower (usually they have), and mainly just staying at the crest of the wave in my field and subfields.
With the exception of the big famous names (famous for the 13 of us in our niche, anyway), I rarely remember those studies' authors, nor the titles of the papers most of the time - i.e. the data encoded in the filename. But I do remember certain phrases, numbers, and the like that they use in the body of the paper - in other words, the material that actually interests me. File content search for PDFs and other text allows me to enter one of these snippets and find the paper in question without having to spend minutes upon minutes scratching my head about "who was that lady at NYU ... or was it a guy at Berkeley"?
With the exception of the big famous names (famous for the 13 of us in our niche, anyway), I rarely remember those studies' authors, nor the titles of the papers most of the time - i.e. the data encoded in the filename. But I do remember certain phrases, numbers, and the like that they use in the body of the paper - in other words, the material that actually interests me. File content search for PDFs and other text allows me to enter one of these snippets and find the paper in question without having to spend minutes upon minutes scratching my head about "who was that lady at NYU ... or was it a guy at Berkeley"?