Nintendo has update the web version of Miiverse to include the ability to view profiles without being authenticated.
The update, as previously outlined, now allows those who aren't logged in or have a Nintendo Network to view user profiles on the Nintendo social network when accessing via PC or smartphone. Nintendo are recommending players review their privacy settings in User Page > Profile Settings.
In addition, the list of connections on the User Page (friends, followers and people you follow) now shows each user's favourite post, in the same way it's shown on their profile.
What do you think of the latest Miiverse changes?