There was a Twitter thread (ironically) on the front page recently where a Reddit founder explained why anyone will always suck at it. I recommend looking it up.
You need to pay for content moderates to prevent lawsuits. Lawsuits are very expensive but less so when you say we had thousands of people working on it.
It's just evidence that a thousand moderators (plus many, many engineers for automated moderation systems to reduce the load) is still nowhere near enough to not suck at moderation on Twitter scale.
