It is nice that the Oxford dictionary is slower to change pronunciation and meanings than American dictionaries, which would influence British to change how they speak and write English more slowly than Americans.
American dictionaries encourage faster changes in the language, since they change according to popular usage at a faster rate, which would influence Americans to change even faster.
I suppose it would be best if someone started a separate post for grammar discussion. That way, grammar discussion would be on topic for the thread, at least.