Great question. I have not heard anything about the subscription link. I don't believe it's going away. As far as adding a link in your article, as long as it's brief I don't think it's a big deal although there is this sentence in Buster's article: "Now that all story pages have the Author bio right after the story’s content, we recommend that you put any calls to action in there." Adding a subscription link to your story would count as a call to action so maybe it's better to put that on your about page. That's my thinking anyway. 🙂
Thanks for the comment!