A macro used by Brikit Pinboards to manage user comments

The Attachment Reference Macro works in the background of Brikit Pinboards to manage page comments. When a user comments on Pinboard page content, Pinboards places that comment on the original content page as well as the Pinboards page, and includes the Attachment Reference Macro to keep track of both the content and the comment. 
If you are editing a comment on a page and encounter this macro, deleting it will cause the comment to be disassociated from the pinned content.