"Read More" option for forum updates that appear in the activity stream

I'm not sure if I've overlooked a setting for this, but for some reason when a Forum Comment appears in the sitewide activity stream, there is no way to expand or view those particular comment from the activity stream. The user had to navigate to that particular forum and then scroll to find the comment so they can view the entire text of the comment.

If someone just make a standard comment, like on their profile, those comments have a "Read More" link and when it is pressed the comment just expands right there and the user can read it.

Do I have to enable something to allow forum comments to be expandable in the activity stream?

I'm using BBPress with Buddypress for my forums functionality.

Thank you!