Frankly, I think once Twitter (and FB) removed their RSS streams they could no longer be fit to spread news in a efficient way or claim to be anything news-related/efficient-to-spread-news.
I have a hard time using Twitter for its news-making ability. The noise is way too much preponderant. Its ability to quickly spread news depends on how close someone watches its subscribed streams and I am only checking it twice a day or every other day.
But I am still using Twitter as a micro-blogging platform and I am only following real people and NASA streams. + I have a tendency to un-subscribe from streams that send too much information that are not related to the reason why I first subscribe or that send information every 20 minutes about anything they are doing (eg: William Gibson or Dresden Codak, because I want to hear stuff about their work, not their personal life tidbits... But people close to them might be more interested in tidbits than in comments on their work so I may be the one misusing Twitter). But is everything news-worthy then ?