Tracks how much of an article you've read (or at least slowly scrolled past) and includes that information when you share the link.
Shares could be proxied through generated URLs that are only generated when the extension thinks you've read the article. Even people without the extension could see you've read the article before sharing.
For commenters (on FB let's be honest) who haven't read the article you could challenge them to respond with a generated link of their own that verifies they've read it.
Tracks how much of an article you've read (or at least slowly scrolled past) and includes that information when you share the link.
Shares could be proxied through generated URLs that are only generated when the extension thinks you've read the article. Even people without the extension could see you've read the article before sharing.
For commenters (on FB let's be honest) who haven't read the article you could challenge them to respond with a generated link of their own that verifies they've read it.