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The funnel entry points were the less secure open fora like 4chan and parler, if those go down, you have to vertically integrate the intakes, increasing your attack surface, and there's no obvious place to recruit online. You could go offline, but then you become more traditional
Digital really doesn't change a whole lot. The problems of organizing an underground sedition movement or terror org are the same as the ones faced by ISIS, Al Qaeda, LTTE etc etc. Find/groom the restive, radicalize and train them, deploy them. Digital+stochastic is details
