I don't want this thread to become a discussion of "Is X CBD or not?" I think that would get dull. And, it misses the point.
...'in my neck of the woods this is/isn't CBD."... I don't think that was Manton's intention with the '7 continents' remark.
I just think of it as "how to dress soberly but still stylishly".
Regardless of local professional customs, I think the principles of CBD as defined here can help in dressing better at all levels of formality and location.
Thanks for starting this one Manton. Even though the original CBD threads were jokes (and funny ones at that), the underlying discussions were really valuable.