Facebook's daily active user base in the US and Canada fell for the first time ever in Q4, dropping from 185M to 184M in the previous quarter (Recode)

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Recode:
Facebook's daily active user base in the US and Canada fell for the first time ever in Q4, dropping from 185M to 184M in the previous quarter  —  It was a small but negative change to daily active users in Facebook's most valuable market.  —  Here's a troubling data point if you're a Facebook investor …