There is no need to hoard articles you don’t actually want to read, but feel like maybe you might one day. Or to cling onto things you read years ago, like a dragon on a glittering bed of pdfs. Having a bookshelf or a lot of pdfs in your cloud server is not scholarship, and it isn’t a personality. It’s just having a lot of paper. We don’t care if you own a lot of papers, we care about what your critical and expert opinion is of what you have read, and how you are using it to advance knowledge.