No, the subscriber links are for exactly this kind of situation. They are to allow you to link to articles when it's relevant to a discussion, as long as you don't abuse them by doing something like posting a regular feed of all LWN articles or submitting every single one to Reddit/HN.

Jonathan Corbet, editor of LWN, frequently posts his own subscriber links to LWN articles:

https://news.ycombinator.com/submitted?id=corbet

And has explicitly endorsed posting occasional links to HN:

https://news.ycombinator.com/item?id=5688938