@kris You are right, until recently didn't pay enough attention to give a user an easy way to see lists of friends and followers, profiles of users. Only about a month ago (in v.39) users' profiles were added to the top of their "Sent" timelines ("Notes by someusername" in the context menu). The profile view has its context menu, allowing to see that user's friends and followers, and to follow the user.
@dwmatiz