I think Steemit should combine both webpage styles so that Steemit has one face place. 
When people are on FB they feel they are in a "space" the Facebook space. 
With two different place spaces for Steemit,  people especially new users, can get confused by which is the real face of  Steemit. 
Both the Steemit platform and the Busy platform have great functions. Why not just combine them both. If you think how much space FBook uses on its layout for advertising. Steemit does not need to think about that, thus it has much screen space to work with.