Upload filters, also known as "censorship machines," are some of the most controversial elements of the copyright proposal, raising a number of concerns including: -Privacy: Upload filters are a form of surveillance, effectively a "general monitoring obligation" prohibited by EU law
-Free speech: Requiring platforms to monitor content contradicts intermediary liability protections in EU law and creates incentives to remove content
-Ineffectiveness: Content detection tools are flawed (generate false positives, don't fit all kinds of content) and overly burdensome, especially for small and medium-sized businesses that might not be able to afford them or the resulting litigation Upload filters are especially concerning for software developers given that: -Software developers create copyrightable works -- their code -- and those who choose an open source license want to allow that code to be shared
-False positives (and negatives) are especially likely for software code because code often has many contributors and layers, often with different licensing for different components
-Requiring code-hosting platforms to scan and automatically remove content could drastically impact software developers when their dependencies are removed due to false positives The EU Parliament continues to introduce new proposals for Article 13 but these issues remain. MEP Julia Reda explains further in a recent proposal from Parliament.