I disagree. ComicsGate is operating on a whole different level from either.
GamerGate ended in a miasma of autism and cheetos dust. Maybe it accelerated the death of game reviews sites by a jot, but other than that, nothing changed. I concede there's always well over a thousand users active on KiA 1 and 2, but not even the lamest of gay ops is contemplated any more. Both seem to do nothing but whine about Reddit censorship these days more than anything else.
Sad Puppies ended when Larry Correia got bored and said "Screw it, I need to go back to writing gun porn Urban Fantasy." He felt his point was proven that the Hugo and Nebula awards were an SJW circle jerk. Oddly, WorldCon responded by changing the voting to make the whole thing into an even BIGGER circle jerk than it was already, but there you have it.
There was nothing close to what we have now with everybody and their brother shilling their crappy comic AmWay style, 24/7, nothing like the way
@FROG gatekeeps, nothing like these weird purges where former CGers get sent off to exile, etc.