There's no scenario where the AI moderators don't become superior to human moderators in a broad sense (only in select, very narrow cases will humans still be better at it). That's one of the easier areas for AI to wipe out in terms of human activity.
This isn't then. The game has changed, permanently and dramatically. Anybody calculating what I'm saying based on GPT 3.5 or 4 is doing it very wrong. That's a comical failure of not looking ahead at all. Look at how far OpenAI has come in just a few years. Progress in that realm is not going to stop anytime soon.
Nvidia is unleashing some extraordinary GPU systems at the datacenter level that will quite clearly enable further leaps in LLMs, and they'll mostly trivially handle moderation tasks.