Much of the resistance to the current EU copyright reform has centered around proposed requirements for platforms to employ mandatory upload filters, or filters which would scan all user contributions before they are uploaded to any website. To illustrate how these filters can harm lawful free expression online, we present the story of a German music professor who encountered first hand how filters can miss the nuance built in to copyright law.
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This system took millions of dollars to develop and is often pointed to as a working example of upload filters by rights holders and lawmakers who wish to make such technology mandatory for every website which hosts user content online. However, these claims ignore the widespread reports of its often flawed execution.