Frequently in my use of Phabricator I will write out stories in mockups or wiki pages as to the use of various tasks. These stories are littered with task references in order to clarify how each component of the story might be accomplished. They also form a lot of primary documentation for how the task should be interpreted and what "done" might mean.
Unfortunately, unless I manually create backlinks in the task description all of this information is difficult to access when reviewing tasks. It would be nice if internal links to tasks were thus documented on the task page itself.