Use this bookmarklet someone posted in HN a few days ago:
javascript:window.location="https://m.facebook.com/l.php?u="+encodeURIComponent(window.l...;
javascript:window.location="https://m.facebook.com/l.php?u="+encodeURIComponent(window.l...;
But 99% of HN users are not going to see this and the whole reason the "web" link exists is to aid in the Google workaround, because that was the gold standard until now. WSJ has now put itself into a special class of sites. Unless I post my link on every single WSJ story submitted to HN, non-subscribers (the vast majority of people seeing it here) won't be able to read it, which means they can't discuss it etc. Therefore it would make sense to me that WSJ links should be blocked here.