Naah. As I mention in a comment elsewhere in the thread, this makes twitter into more of a popularity contest from a 'creator' point of view. Right now, you're pretty much guaranteed your friends will see your feed no matter what. Once they opt-in, (and don't remember/bother to opt in me into their 'real' feed) my voice is lost in the cacophony of other celebs. What this is essentially doing is fragmenting the core twitter experience that most users are currently in for, for a more fb-like feature. It matters to you even if you don't opt in, because that changes how your friends see your tweets.