Earlier quoted context omitted.
> 2) they are wayyyyy too big to police content manually To be more exact: they do not want to spend money on competent policing. They probably have capability to employ ten times as many human moderators as they do now, thus reducing the blatant error rate (at least in the case of highly influential pages and people), but that would eat into their profits.
Assuming a user:moderator ratio of 10,000:1, they would need to hire 200,000 moderators to cover their 2 billion users. Then at that scale, they’d need to hire thousands of meta-moderators and meta-meta-moderators too.
If all mods are routinely screening each other’s work, everyone has an incentive to be fair. Biased mod decisions are thus a risk to your continued employment because you know your work is spot-checked.