Hey @sid, potentially, but not in the near future. The model in the OP works well for peer-to-peer streams, that is, maximum 2 parties involved.
The topology is different with DAICOs, as they require constant coordination among many investors and there’s definitely a lot of voting sessions. However, we thought about SICOs - Streamed Initial Coin Offerings.
You scratch the global tap: num(wei/ sec) and set up a stream between every individual and the token creators. Now, all investors can arbitrarily mutate the state of their own stream, based on project’s performance. Just like with DAICOs, funds already streamed belong to the token creators and no one can take it from them, but investors also have the power to lower the rate or even close the stream whenever they want.
Note: the above is merely a random idea posted as a comment on a forum, there is no fully-fledged proposal describing these “SICOs”