First, that doesn't refer to the parallel naming schemes, it only criticizes use of "GB" as an acronym.
Second, it's not specific enough -- the fact that two parallel measurement schemes are in effect is the answer to the question he asks in his title. That deserves more than an offhand, incomplete reference.
Second, it's not specific enough -- the fact that two parallel measurement schemes are in effect is the answer to the question he asks in his title. That deserves more than an offhand, incomplete reference.