I believe the scenario is:

  Your username: you
  You are following: friend
  You are not following: stranger.

stranger tweets: @friend #Scala works4me (using jcl.Conversions) where is your pain point?

friend tweets: @stranger I wish the would be like Clojure or better work on an Iterator instead of lists

The way it worked before, you would have the option to see both of these messages, one of these, or none of these. Now you get to see none of them. @you tweets are unaffected.

I'm finding it hard to find a clear description of this anywhere, so I might be incorrect.