Not sure how the Newsfeed is built or stored, but I was surprised that after removing members from my "people you follow" listing, their posts (from prior to the removal at least) still appeared in the Newsfeed. I thought the newsfeed building was more dynamic, but it seems like it is more static with pointers established at posting and not at the time of the newsfeed display request. One of those interesting tidbits, not necessarily a bug
