HN Readers, Commentators and Story Submitters are aware of the FAQ; 'Are paywalls ok?
It's ok to post stories from sites with paywalls that have workarounds. : https://news.ycombinator.com/newsfaq.html
Which means for the Publishers of pay-walled sites to be featured on HN,
which is a prime site for garnering potential paying new prospects and to replace natural attrition of subscribers.
Some Publishers see this as a positive.. free samples, a minor amount of the Publications full output,
much like a paid agent in a supermarket giving out cheese and/or spiced meat on a stick etc, to encourage new users.
Other Publishers see this as mice nibbling at their cheese.
I use archive.is because almost of the Articles submitted to HN are already archived, so it is a simple copy and past.
archive.is does Not require java to read or to archive an Article,
it is fast and the archiving scripts work on most sites.