I&#x27;m confused by this. The researchers don&#x27;t get paid for their paper, and it seems like the peer reviewers don&#x27;t get paid for doing the peer review:<p><a href="http:&#x2F;&#x2F;www.nature.com&#x2F;news&#x2F;open-access-the-true-cost-of-science-publishing-1.12676" rel="nofollow">http:&#x2F;&#x2F;www.nature.com&#x2F;news&#x2F;open-access-the-true-cost-of-scie...</a><p>So why exactly are publications locking these papers behind massively expensive paywalls when writing them and reviewing them are being done for free?