Possibly. SG is the only one able to create new subsections/"child" boards?
Pretty much. Otherwise, I would have immediately whipped up a whole bunch of boards (possibly to SG's chargin ^^;; ) in the CIA section for better organization purposes as a Card Curator, but luckily not having that power made me realize how pristine the current format is with 4 main sections: Art, Design, 'Polls/Archives', and the Main Page.
How about this: I could
include portfolio's into the Series subsection, and those threads would need to have the [*Name's* Portfolio] Tag on them so that people could take a look at your card ideas without cluttering the main section up (the main section is now only restricted to individual card ideas only now). This would be a temporary solution if SG decides that a Portfolio sub-board is unnecessary.
Deal or no deal?
(I've always wanted to use that term XD)