I was looking at the links on Anyone have some links to “easy to read” resources for a DND newbie? and I can plainly see two links to questions in the comments, but only one of them shows up in the Linked sidebar.

• +1 I tried your experiment, and you seem to be right! – Dave Hallett Dec 7 '10 at 21:37

This was a bug in how the linked questions were being determined.

A fix will be pushed in tomorrow's build and I'll update the links using the new code.