A social movement has to form, one that rejects the faceless internet mob, and recognizes only people who exist here and now, physically in the present.
It needs a name. Movements only catch on when they have the right name that instantly conveys the message.
What about internet access only with government issued chipcard ID, two factor authorized, biometrically verified and geocoded via your mandatory smart gadget? Of course no posting at all with bad (social) credit!
To do this they’d have to specifically recognize the problem of mob cancellation and decide to listen only to their own members.