I tried using CNNs vs @Raymon's bots, it worked but the collateral damage was unacceptable.
Reply Guy isn't remotely as talented, even regex work well.
Another Raymon, but as malicious as Reply Guy?
Relays could level up to Transformer-based filters, but the cost in hardware and energy is prohibitive.
Proof of Work should be our first defence, with Web of Trust relays and paid relays for when that falters.