I think you may have misunderstood. I&#x27;m not asking if we&#x27;re allowed to submit links to Elsevier. I&#x27;m asking if we&#x27;re allowed to include a mirror in the comments of an Elsevier submission. This is different from news articles because the news paywalls are only meant to kick in after a bit of usage and are easily avoided by new window or similar, while studies generally require a subscription or paying a fee. The &quot;workaround&quot; for those involves someone with a subscription downloading it and uploading elsewhere, and whether that&#x27;s allowed on HN wasn&#x27;t clear from this post.