Click on one of the links that the comments are replying to (easy example on my userpage is kemitche's cat ad)
Click on the "comments" button in socialite.
At this point, you end up on a 404 page for something like http://www.reddit.com/r/promos/comments/c528e7a/ i.e. it has the comment's ID not the link's ID.
Apologies for the ungainly title, hopefully it will be clear when I explain how to reproduce the issue.
At this point, you end up on a 404 page for something like
http://www.reddit.com/r/promos/comments/c528e7a/
i.e. it has the comment's ID not the link's ID.