It is really difficult to start from scratch now, to interact with people who doesn't see your replies, to cast in an app where the default configuration hides a lot of conversations. Do you really want a Warpcast for "power users"? OK, this is what it is evolving to... congratulations
So your proposal is subject everyone to a bunch of low quality casts with the hopes that the smaller number of good ones get followed? Seems like that will cause existing good users to churn.