The ability to see who liked what, where it was posted from etc is great! I love being able to comment back as well with replies that are threaded through my account instead of having them show up under separate posts in their own thread. Some people have problems figuring out how they can post comments when there isn't an actual link for "comments" or similar words anywhere - this makes commenting difficult at times because you don'y know if someone could potentially be reading over your shoulder while trying to figure things out. This helps solve some issues we've had previously by giving us more control over our content and allowing other users to interact directly with eachother without cluttering threads.