Items I've subscribed to are displayed as:

HEADLINE
Source by Author

Items that are shared with me are displayed as:

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This means if my friend John shares an article from The Onion, I can't tell that it's an article from The Onion because it will look like

PRESIDENT OBAMA RECALLS PICKLES
John by Joe Smith

instead of
PRESIDENT OBAMA RECALLS PICKLES
The Onion by Joe Smith

The item's source should not be obscured. This is valuable information.