I don't think anyone should opt out of updated-episode notifications simply because I know many creators will use that as a way to update a new page (I know I probably will. lol.) But it's a good idea to be able to unfollow certain wall posts convos and such...
OH wait, I just realized also that I follow a lot of webcomics on here by RSS not by subscriptions...If a creator decides to edit an episode to post a new page, will I be notified via RSS too? (Not sure if you guys even know the answer to this...haha). I just find RSS to be more convenient for me personally.