How many people do you think it would take to meaningfully apply manual moderation at the scale of Blizzard, Facebook, or Instagram? How many more people in sup

How many people do you think it would take to meaningfully apply manual moderation at the scale of Blizzard, Facebook, or Instagram? How many more people in support staff? How much do you think this would cost? How well do you think that cost would stack up against spending millions on half-hearted automated moderation?