 What does removing permission barriers mean for readers?
In addition, replacing user freedom with permission-seeking harms research authors by limiting the usefulness of their work, harms research readers by limiting the uses they may make of works even when they have access, and thereby harms research from both directions. Removing price barriers means that readers are not limited by their own ability to pay, or by the budgets of the institutions where they may have library privileges. Removing permission barriers means that scholars are free to use or reuse literature for scholarly purposes. But at the same time, all three allow at least one limit on user freedom: an obligation to attribute the work to the author.
 Readers can reuse literature for scholarly purposes.
 Readers can reuse literature for scholarly purposes.  Readers can translate and redistribute work.  Readers are not limited by their own ability to pay.  Readers are not limited by the budgets of libraries.