I wouldn't think Hacker News would be in any trouble with this one. The link is to a noteworthy site, not to any infringing content; you'd have to take action and use a specific search term to find copyrighted content. And the implication of posting it is clearly that people should find it interesting and discuss it, not that they should use it to download articles.

And it's not like searching in google scholar, getting the doi and putting it in scihub was any great hardship before.

A guy in the UK got extradited to USA for making a web page with links to sites that hosted copyright material ... YMMV.

https://www.techdirt.com/articles/20120113/09184917400/us-to...