HN's policy on paywalls is outlined in the FAQ [1]. Private Browsing mode is generally a good workaround:
> It's ok to post stories from sites with paywalls that have workarounds.
> In comments, it's ok to ask how to read an article and to help other users do so. But please don't post complaints about paywalls. Those are off topic.
The rationale explained by dang in a 2015 post [2] makes sense:
> Publications like NYT, WSJ, the Economist, and the New Yorker have paywalls that leave ways for readers to work around them. Such stories are OK to post to Hacker News. Yes, this sucks, but the loss of many substantive articles would suck worse.