Yeah, for a long time, it expected every HN post to contain a link. This did go well for a long time since most top HN posts do contain a link. Only after I looked up the logs, I realised that it sometimes logged errors. When I fixed it, I had to wait until another HN discussion reaches the top to see it working in production.

This might finally be the moment after months, lol.

Or I simply missed some HN discussions shared by @hn.