I believe that this is a great idea, but it wont be worth the time to do. Many people may use it to see who published what, but it is highly debatable if the watcher will actually PLAY the game. Like in DeviantArt, just as an example, I watch several people, but I never get around to seeing their art. If you're that loyal to a specific writer, you will have no problem visiting their page to check what they have.
The fact that this will most likely be a useless feature champions the fact that it is actually a great idea. Perhaps when a more variety of different writers (have you noticed that many of the featured writers repeat?) start getting more well known will this be a great idea.