I disagree with the comment regarding usefulness of new Add Content design. I enjoy using this feature to discover new feeds. I would very much like to have a sidebar with recommended feeds, as long as those recommendations are based on my existing feed list and articles I’ve read, saved or shared in the past. Also, I like the related topics sidebar. The more features that enhance discovery of interesting feeds, the better, in my opinion. You can always add your own feeds, but that doesn’t make these features any less desirable.