ahoo ▁fellow ▁at ▁Ge or get own ▁University , ▁cont ended ▁that ▁information ▁uploaded ▁to ▁Twitter ▁may ▁have ▁little ▁relev ance ▁to ▁the ▁masses ▁of ▁people ▁who ▁do ▁not ▁use ▁Twitter . ▁In ▁an ▁article ▁for ▁the ▁magazine ▁D issent ▁titled ▁" I ran : ▁Down side ▁to ▁the ▁' Tw itter ▁Revolution ' ", ▁Mor oz ov ▁wrote : ▁ ▁In ▁contrast , ▁in ▁the ▁United ▁States ▁( where ▁Twitter ▁origin ated ), ▁the ▁social ▁network ▁had ▁ 3 0 6 ▁million ▁accounts ▁. ▁The ▁number ▁of ▁accounts , ▁though ▁s izable ▁in ▁proportion ▁to ▁the ▁U . S . ▁population ▁of ▁ 3 1 4 . 7 ▁million ▁in ▁ 2 0 1 2 , ▁may ▁not ▁be ▁fairly ▁compar able , ▁since ▁an ▁und is closed ▁number ▁of ▁Twitter ▁users ▁operate ▁multiple ▁accounts . ▁ ▁Professor ▁Matthew ▁A uer ▁of ▁B ates ▁College ▁cast s ▁doubt ▁on ▁the ▁conventional ▁wisdom ▁that ▁social ▁media ▁are ▁open ▁and ▁particip atory . ▁He ▁also ▁spec ul ates ▁on ▁the ▁emer gence ▁of ▁" anti - social ▁media " ▁used ▁as ▁" inst ru ments ▁of ▁pure ▁control ." ▁ ▁Crit ic ism ▁of ▁data ▁har vest ing ▁on ▁Facebook ▁On ▁April ▁ 1 0 , ▁ 2 0 1 8 , ▁in ▁a ▁hearing ▁held ▁in ▁response ▁to ▁revel ations ▁of ▁data ▁har vest ing ▁by ▁Cambridge ▁Anal yt ica , ▁Mark ▁Z ucker berg , ▁the ▁Facebook ▁chief ▁executive , ▁faced ▁questions ▁from ▁sen ators ▁on ▁a ▁variety ▁of ▁issues , ▁from